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A method for manufacturing a surgical needle devoid of a grinding
process includes the steps of swaging a needle blank to define a
substantially tapered or conical needle end, pressing the tapered
needle to form a plurality of intersecting surfaces and forming
cutting edges along the lines of intersection of the intersecting
sides. The needle may be subjected to an etching process (e.g.,
an acid bath) to sharpen the cutting edges and/or provide a matte
finish on the needle. The needle produced by the novel process is
extremely sharp and durable, and exhibits an enhanced retention
of sharpness relative to conventional ground needles over periods
of prolonged use.
The present invention relates to a holder for a surgical needle
provided with a safety release mechanism. The safety release mechanism
is designed so that when the device is not in use either by way
of a deliberate action on the part of the operator, or where for
example the device is accidentally dropped, the needle automatically
retracts within the holder to prevent injury to the operator or
other persons.
In a system with a surgical needle and a handle, the surgical needle
has in its proximal end-section, lying opposite the needle tip,
a holding section (14), which is set up for insertion into the handle.
The handle has a channel (32), set up for holding the holding section
(14) of the surgical needle, and a locking device (50 70) with
a locking element (50) which is displaceable in longitudinal direction
of the channel (32) from a locking position, in which the holding
section (14) is fixed to the handle, into a release position, in
which the holding section (14) can be pulled out from the channel
(32).
A barbed suture for connecting tissue, and a combination surgical
needle with a barbed suture. The suture includes an elongated body
and a plurality of barbs projecting from the body. Each barb causes
the suture to resist movement in an opposite direction from which
the barb faces. The disposition of the barbs on the body may be
staggered, twist cut multiple spiral, overlapping, or random. Also,
the configuration of the barbs may be a certain spirality angle
.alpha., barb cut angle .THETA., barb cut depth, barb cut length,
barb cut distance, corrugated barb underside, arcuate barb base,
or varying barb size.
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