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Needle
/ Use
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Geometry
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Symbol
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Taper
Point Needles
Flat
body needles are used on soft, easily penetrated tissue. The body
of the needle is flattened to improve the grip of the needle holder
and stabilize the needle.
Taper Point Needles: Fine body needles used for cardiovascular
and vascular surgery.
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Taper
Point Needles with a cutting tip
This needle has a tapered body with a sharpened cutting tip. Used
on tough tissue where a cutting tip is required.
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Taper
Point Needles with a blunt point
The needle has a round body with a rounded blunt point. These
needles were designed for use on friable tissue, like the liver,
and their use has been extended to cover accidental puncturing
of surgical gloves, and needle stick. This gives the surgeon some
added protection when working on Aids related patients.
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Reverse
Cutting Needles
The
cutting edge is on the outer curve, used on tissue that is tough
and difficult to penetrate. An additional honing process is carried
out on needles used for plastic and cosmetic surgery.
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Conventional
Cutting Needles
These needles have two opposing cutting edges with a third on
the inside curve of the needle. The body of the needle is flattened.
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Micro-optic
Spatula Needles
This needle is used in ophthalmic anterior surgery, where the
needle needs to be thin and flat and very sharp, to ensure easy
passage through tissue such as cornea and sclera.
Micro-Optic Reverse Cutting Needles: The cutting edge is on the
outer curve, and these very sharp, honed needles are ideal for
ophthalmic surgery.
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