Suture cutting system

Details Suture cutting system Suture cutting system

1997-02-21

2000-05-09

Dexter, Clark F.

Cutting

Interrelated tool actuating means and means to actuate work...

Work clamp

83454, 83636, 836391, 83950, B26D 702

Patent

active

060588217

ABSTRACT:
Apparatus for cutting an indefinite length suture to uniform lengths for subsequent threading and swaging to surgical needles includes a drawing tower having first and second guide members defining a drawing axis parallel thereto. First and second grippers are provided to grip the indefinite length suture and to alternately draw it along the drawing axis, with each gripper being mounted for reciprocal movement along a guide member. Each gripper alternately grips the suture and draws it a distance beyond the location of a cutter assembly while the other gripper reciprocates to a start position before the cutter assembly. A tipping assembly heats a predetermined small length of the suture to stiffen the suture thereat after subsequent cooling, in preparation for cutting the suture thereat and inserting a stiffened lead cut end of the suture into an end of a needle for swaging thereto. Both the tipping assembly and the cutter assembly are variably positioned in the apparatus to accommodate different cut lengths of suture. An improved cutter assembly is provided which positions and then clamps the suture between a pair of retractable locator arms, and then translates a knife blade across the clamped suture.

REFERENCES:
patent: 3183743 (1965-05-01), O'Donnell et al.
patent: 4055100 (1977-10-01), Borzym
patent: 4565311 (1986-01-01), Pugliese et al.
patent: 5452636 (1995-09-01), Rattan
patent: 5726422 (1998-03-01), Haase et al.

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