GLOBENEWS

VOLUME 9 NUMBER 1

FOR OPHTHALMIC PROFESSIONALS

LASIK - What are my Choices?A

COMPREHENSIVESELECTION

OF INSTRUMENTSFROM KATENA

The growth of LASIK surgery hasdramatically increased during thelast three years and continues togrow at a record pace. This prolifer-ation has also lead to the develop-ment of many new instruments. To simplify the selection of theappropriate instrument for theindividual surgeon’s technique, thisissue of the Katena Globe News willbe devoted to describing LASIKsurgery instruments availablefrom Katena.

Retracting the Lids - An appro-priate speculum must be selected toprovide adequate exposure of theglobe for placement of themicrokeratome vacuum ring. Mostsurgeons prefer the adjustableLieberman speculum which retractsthe lids sufficiently to provideunobstructed access for the microker-atome. Several models are availablewith and without aspiration.

Preparing the Cornea- Cleaningand preparing the cornea is usuallydone with a wet sponge spear.While hydrocellulose spongespears, such as Katena’s K-Sponge,absorb fluids faster and arepreferred for cataract surgery, theyare not recommended for LASIKsurgery. Synthetic sponges, such asKatena’s K-Sponge-II (K20-5010),

Katzen Flap “Unzipper”

K3-2534 Katzen Flap“Unzipper”, double end - This instru-ment features a modified Sinskeyhook to locate and expose the flapedge and a unique spatula with

beveled notches for “unzipping”the flap edge. The smoothlypolished bi-convex spatula can alsobe used for lifting and repositingthe flap.

absorb fluids at a slower rate,however, they are virtually lintfree because of their closedcell construction. This lint freefeature is extremely important toensure a clean, foreign body freeflap interface. Corneal markers are designed toplace identifying patterns on thecornea. A single (Continued on page 2)

round marker is commonly used to facilitate the centration of themicrokeratome vacuum ring. Various markers with asymmetrical patternsare available to provide landmarks for realignment of the flap and foridentifying the epithelial side of a loose cap.

Handling the flap - Specific instruments have been designed for handlingthe flap. Depending on the surgeon’s preference, this can be done with aspatula and/or forceps. Spatulas typically have a beveled front edge, toeasily enter the flap interface, and smoothly rounded surfaces to elevateand reposit the flap. Forceps feature specially designed jaws to securelygrasp and lift the flap.

Flap protectors - shield the corneal flap during laser ablation. They have adull finish to minimize reflections. Single and double-ended models areavailable for either nasally or superiorly hinged flaps.

Fixation rings - are used to stabilize the globe and prevent inadvertentmovement of the eye during laser ablation.

Irrigation - Cannulas are used for irrigating the eye before and afterrepositing the flap. Katena offers a number of models which are designedto easily enter the interface and feature single or multiple ports.

K1-5680Reversible with thin solid blades. Can be placed either temporally or nasally.

NASAL

TEMPORAL

CORNEAL MARKERS

K1-5671 Kratz style open blades provideunobstructed access to the eye.

K1-5171Kratz style blades with aspirating ports to evacuate fluid from the surgical field.

K1-5675 V-shaped open blades help retain the surgical drape under the lid.

K1-5678Thin solid blades prevent eyelids and lashes from entering the surgical field.

LIEBERMAN STYLE SPECULUMS

A COMPREHENSIVE SELECTION (Continued from Page 1)

K3-7720 Mendez LASIK Marker –a modified cross pattern with twoopposing radial marking lines andtwo asymmetrically placed parallelmarking lines which extend to thelimbus and provide landmarks forrealignment of the flap.

K3-7730 Chayet LASIK Marker – the 8.5mm diameter marking ring is used as a guide for centering themicrokeratome. Two smaller rings ofdifferent diameters are used for accu-rate realignment of the corneal flap.

K3-7735 Lu LASIK MarkerA 10.5mm diameter marking ringwith radial marking lines producesan asymmetrical pattern for center-ing the vacuum ring and for preciserealignment of the corneal flap.

K3-7737 Dulaney LASIK Marker – with interlocking 3.0mm and3.5mm diameter marking rings.Two different diameter ringsfacilitate identification of theepithelial side of a loose cap.

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K1-5175V-shaped blades with aspiratingports to remove fluid and retain the surgical drape under the lid.

MARKING PATTERN

MARKING PATTERN

MARKING PATTERN

MARKING PATTERN

Hoffer Corneal MarkersK3-8418 7.0mm K3-8422 8.0mmK3-8426 9.0mmUsed to imprint a circular mark onthe cornea for centering the micro-keratome vacuum ring. Three diam-eters are available to accommmodatea variety of vacuum ring sizes.

SPATULAS

FORCEPS

FIXATION RINGS

MARKING PEN

K3-2530 Fukasaku LASIK Spatula –rounded anterior surface and flatposterior surface - slightly convexto conform to the curvature of thecornea. Semi-sharp tip to locate andlift the flap edge, as well as to dissectunder the flap with minimal vectorforces. Ideal for enhancements.

K3-2532 Guimaraes LASIK Spatula–A gently curved spatula with semi-sharp edges for dissecting thecorneal flap. Smoothly polished bi-convex surfaces are designed forentering the interface, lifting andrepositing the flap. Can be used tosqueeze excess fluid from the interface.

K3-2535 Maddox LASIK Spatula – combines a flat spatula for elevating theflap and protecting the hinge with a cylindrical spatula for repositing andsmoothing the flap.

K5-5060 Mendez multi-purpose LASIK Forceps – This instrument combinesthe features of a spatula, dissector and forceps. Vaulted jaws conform to thecurvature of the cornea. Spatulated tips and beveled edges to enter, elevateand smooth the flap. Smooth inside jaw surfaces for grasping the flap.

K5-5058 Buratto LASIK Forceps – thin disc shaped tips are smoothlypolished on the outside to easily enter the lamellar interface. Very fineserrations on the inside surfaces facilitate secure grasping of the corneal flap.

K5-1820 Fechtner Ring Forceps – though originally designed for handlingconjunctiva, these delicate ring shaped tips are ideally suited for atraumat-ically grasping and lifting the corneal flap.

K3-6153 Katena Globe Fixation Ring –atraumatic fixation with con-centrically grooved contact surface.This closed ring, with 12mm centralopening, is positioned at the limbusand can serve as a resting place forthe corneal flap.

K3-6160 Gimbel Stabilization Ring –offset 13mm diameter ring with9mm cutout to accommodate theflap hinge. The swivel ring, withblunt teeth on both sides foratraumatic fixation, allows thesurgeon to use it comfortably foreither the left or right eye.

A gentian violet marking pen isused for coating corneal markers toproduce a pattern on the corneawhich is clearly visible for theduration of the surgery. Packagedsterile, 10 per box.K20-4500 Marking Pen, box of 10

TIP CROSS SECTION

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There are three things that happen to you when yougrow older. First you begin tolose your eyesight, then you

tend to forget, and third – I can’t remember.

K3-1770 Buratto Flap Protector, single, for nasally hinged flaps. Features anextremely thin, convex blade with a narrow lip to positively engage andshield the flap. Dull finish.

K3-1772 Buratto Flap Protector, double end, for superiorly hinged flapswhich are approached from the patient’s temporal side. Dull finish.

K3-1774 Rowen double-ended Spatula – combines a Buratto Flap Protectorand a bi-convex vaulted spatula. This combination allows the surgeon todissect, elevate and protect the flap with a single instrument.

FLAP PROTECTORS

HYPEROPIA

K3-7692 Moore-Wilson Hyperopic Conformer - Laser ablation to correcthyperopia creates a circular groove in the stromal bed making it difficult tofully reseat the flap. This instrument is designed to lightly press on thecorneal flap conforming it to the newly shaped stromal bed. According toDr. Wilson, by conforming the flap in this manner, postoperative astigmatism isreduced and corneal healing is accelerated.

K9-2025 Sterilizing Case, medium73⁄4”x 41⁄4”x 1”(200 x 110 x 25mm)

K9-2030 Sterilizing Case, large9 7⁄8” x 5 7⁄8”x 1” (250 x 150 x 25mm)

Autoclavable plastic with silicone matto protect delicate instruments duringsterilization and storage. Base, lidand mat are perforated for steampenetration.

K9-2100 Instrument Caddy81⁄4” x 5” x 3⁄4” (210 x 125 x 20mm)

stainless steel A sturdy case designed to protect asmall set of microsurgical instrumentsduring storage, transport and steril-ization. Lid, base and silicone mat areperforated for steam penetration anddrainage.

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CASES

K7-5176Gimbel LASIK Polishing CannulaA 30 gauge cannula for removingparticles which have becomeembedded in the corneal interface.Its tip is flattened for ease ofinsertion and sandblasted for gentlydislodging and irrigating suchparticles.

K7-5106Spatulated LASIK Cannula This 26 gauge vaulted cannula hasan end opening for irrigating theinterface. It features a thin spatulatedtip which is designed to easilylocate and elevate the flap edge.

K7-5112Banaji LASIK Cannula This 25 gauge cannula features abullet shaped tip for easy insertionunder the flap and six ports formulti-directional irrigation.

K7-5180Vidaurri LASIK Cannula, 25 gaugeA double-armed cannula with eightports for simultaneously irrigatingboth sides of the flap as well as thestromal bed. It is ideally suited forcontrolled handling of the flap.

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CANNULAS

Fukasaku LASIK CannulaK7-5108 23 gaugeThis end opening cannula featuresan extremely low profile tip foreasy insertion under the flap. Theflat end opening allows irrigationfluid to be evenly dispersed andprecisely directed.

Buratto LASIK Cannula K7-5117 25 gaugeK7-5118 23 gaugeFor those surgeons who prefer acannula with multiple ports, Katenaoffers this flattened cannula with asmoothly burnished tip for easyinsertion under the corneal flap. Itfeatures one small front and twolarger side ports which aredesigned to provide equal flow inthree directions. Available in twosizes.

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Gimbel LASIK Fountain CannulaK7-5110 right K7-5111 left 25 gauge – designed for irrigatingthe lamellar interface as well as tolift, replace and smooth the cornealflap. It is angled at 10mm from thetip and formed to the curvature ofthe cornea. It has a bullet shaped tipfor easy insertion under the flap. Asingle port near the apex of thecurve provides a fountain like fluidflow to irrigate under the flap.

Katena Products, Inc., 4 Stewart Court, Denville, NJ 07834 • USA / ☎973-989-1600 • 800-225-1195 • FAX 973-989-8175 • E-MAIL globe@katena.com • www.katena.com

4 Stewart CourtDenville, New Jersey 07834 • USA

If you have access to the Internet you can e-mail us atglobe@katena.com

K-Sponge-II® is made from syntheticsponge material which is virtuallylint free. It becomes extremely softand pliable when wet. Recommend-ed for LASIK surgery to removeexcess fluid and smooth the flap.K20-5010 K-Sponge-II® Spearspackaged sterile5 per envelope, 20 envelopes per box

K-SPONGE-II®

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2 3 4 5 6 7 10 11

8 9

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1. K1-5671 Lieberman Speculum, k-wire blades

2. K3-1770 Buratto Flap Protector, single (for nasal hinge)

3. K3-1772 Buratto Flap Protector, double (for superior hinge)

4. K3-2530Fukasaku LASIK Spatula

5. K3-2534Katzen LASIK Flap “Unzipper” (for retreatments)

6. K3-6160 Gimbel Stabilization Ring

7. K5-5058 Buratto LASIK Flap Forceps

8. K7-5118Buratto LASIK Irrigating Cannula

9. K7-5180 Vidaurri LASIK Irrigating Cannula

10. K20-5010K-Sponge-II, synthetic sponge spears

11. K20-4500 Marking Pen, box of 10

K9-2030Sterilizing Case, plastic, large(see page 4)

12. AlternateK1-5171 aspirating model

Boss: I have good newsfor the employees today.

We have complied with allfederal, state and local

government regulations.All forms have been

completed and sent out. I also have some bad news –we are filing for bankruptcy.

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BASIC LASIK SET