Katena

Barron Radial Vacuum Trephine

for the recipient cornea

Cat. No.	Diameter
K20-2050	6.0mm
K20-2052	6.5mm
K20-2054	7.0mm
K20-2056	7.5mm
K20-2057	7.75mm
K20-2058	8.0mm
K20-2059	8.25mm
K20-2060	8.5mm
K20-2062	9.0mm

The Barron Radial Vacuum Trephine is designed for cutting the recipient cornea. It features a 360 degree suction chamber, divided into 16 compartments. By dividing the suction chamber, less corneal tissue is aspirated, thus reducing corneal distortion. The result is a consistently accurate, uniform and perpendicular cut. The 16 radial divisions leave a symmetrical pattern on the recipient bed for accurate alignment of sutures to minimize surgically induced astigmatism. These divisions may be inked with a sterile marking pen to be clearly visible for the duration of the surgical procedure. Fine cross hairs are provided for accurate alignment with the visual axis of the recipient. A precisely calibrated rotating mechanism allows the surgeon to advance the blade depth 0.25mm with each 360 degree rotation. Thus, the trephine is ideally suited for lamellar or penetrating keratoplasty.

Barron Non-Vacuum Punch

for the donor cornea

sterile, disposable

Cat. No.	Diameter	Cat. No.	Diameter
K20-2070	6.0mm	K20-2078	8.0mm
K20-2072	6.5mm	K20-2079	8.25mm
K20-2073	6.75mm	K20-2080	8.5mm
K20-2074	7.0mm	K20-2081	8.75mm
K20-2075	7.25mm	K20-2082	9.0mm
K20-2076	7.5mm	K20-2084	9.5mm
K20-2077	7.75mm

Barron Vacuum Punch

for the donor cornea

sterile, disposable

Cat. No.	Diameter	Cat. No.	Diameter
K20-2100	6.0mm	K20-2108	8.0mm
K20-2102	6.5mm	K20-2109	8.25mm
K20-2103	6.75mm	K20-2110	8.5mm
K20-2104	7.0mm	K20-2111	8.75mm
K20-2105	7.25mm	K20-2112	9.0mm
K20-2106	7.5mm	K20-2114	9.5mm
K20-2107	7.75mm

The Barron Vacuum Punch features a solid stainless steel blade which is permanently mounted in a nylon housing. Four steel guide posts align with four corresponding holes in the cutting block base, automatically centering the blade over the donor cornea. The base of the punch features a circular groove for aspirating the epithelial side of the cornea, immobilizing it for cutting the button. The seating ring is used to ensure complete contact between peripheral cornea and aspirating groove for positive vacuum, so that a perfectly round button can be cut from the centre of the cornea every time. The cutting block well has four small holes which may be inked with a sterile marking pen (included) to identify the four quadrants of the cornea for cardinal suture alignment in the recipient bed.

Barron Artificial Anterior Chamber

To cut the donor cornea from the epithelial side

The World's only Disposable artificial Anterior Chamber

Better donor button to recipient match
Dramatically less surgically induced astigmatism
Sterile and disposable
Bright blue colour for excellent visualization

The Barron Artificial Chamber is comprised of three pieces: base with tissue pedestal, tissue retainer and locking ring. The base has two ports with silicone tubing, in-line pinch clamps and female luer-lok connectors. Either port may be used to inject or aspirate viscoelastic, balanced salt solution (BSS) or air.

This new artificial Anterior Chamber is a companion to the Barron Radial Vacuum Trephine. It is designed to firmly hold the donor cornea (14-18mm) on a bed of viscoelastic, inflate it, and cut it with the Barron Trephine from the epithelial side. Cutting from the epithelial side produces a much better donor-to-host match which dramatically reduces surgically induced astigmatism.

The bright blue colour of the unit provides a high contract background for visualising the cornea.

A Barron Vacuum trephine is used for cutting the donor graft.

Barron Stainless Steel Base

Stainless Steel Base with anti-slip silicone feet autoclavable

For use with the Barron Artificial Anterior Chamber

For more info, check the official Katena website.