Surgical thread cutter
First Claim
1. A surgical thread cutter, having a blade movable via an actuation mechanism relative to an anvil toward and away from the latter, and having a spring by way of which spring said blade can be acted upon by a compressive spring force in one movement direction of said blade, wherein said spring acts upon said blade in a cutting direction, and wherein a retention system is provided by means of which said blade can be locked in a position remote from said anvil, and said force of said spring is set in such a way that after said retention system is released, said blade can be moved onto the anvil in the manner of a guillotine, said anvil being in the shape of a hook.
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0 Petitions
Accused Products
Abstract
A surgical thread cutter (10) has a blade (18) movable via an actuation mechanism (30) relative to an anvil (20) toward and away from the latter, and a spring by way of which the blade (18) can be acted upon by spring force in one movement direction. In the interest of better and safer handling, it is proposed that the spring act upon the blade (18) in the cutting direction, that a retention system be provided by means of which the blade (18) can be locked in a position remote from the anvil (20); and that the force of the spring be set in such a way that after the retention system is released, the blade (18) can be moved onto the anvil (20) in the manner of a guillotine (FIG. 1).
145 Citations
23 Claims
- 1. A surgical thread cutter, having a blade movable via an actuation mechanism relative to an anvil toward and away from the latter, and having a spring by way of which spring said blade can be acted upon by a compressive spring force in one movement direction of said blade, wherein said spring acts upon said blade in a cutting direction, and wherein a retention system is provided by means of which said blade can be locked in a position remote from said anvil, and said force of said spring is set in such a way that after said retention system is released, said blade can be moved onto the anvil in the manner of a guillotine, said anvil being in the shape of a hook.
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23. A surgical thread cutter comprising:
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an elongated shaft having proximal and distal ends;
an anvil provided on the distal end of the elongated shaft;
a blade displaceable between a first position, wherein said blade is spaced from the anvil between the proximal and distal ends of the elongated shaft, and a second position, wherein the blade is displaced toward the distal end in a cutting direction onto the anvil;
a retention system connected to the blade for arresting the displacement of the blade in the cutting direction in said first position; and
a compression spring compressed when said blade is in said first position biasing said blade toward said distal end when said blade is in the first position so as to enable said blade to move in the cutting direction onto the anvil in the manner of guillotine after the retention system has been released.
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Specification