Micro surgical cutting instrument configured as scissors
First Claim
1. A micro surgical cutting instrument configured as scissors comprising:
- an elongate housing formed as a handle having two housing parts having semi-circular cross sections which are spread apart against a spring pressure and in operative engagement with a sliding mechanism;
a probe configured as a hollow needle and operatively connected to the sliding mechanism;
a rod axially disposed in the hollow needle in form fitting engagement and secured in a control member of the sliding mechanism against axial displacement;
wherein the probe is moved in axial direction by the control member of the sliding mechanism when the two housing parts are squeezed together;
a cutting device disposed at a distal end of the rod and configured as scissors having two cutting members, each cutting member having one of an arcuate or straight configuration, each cutting member provided with a cutting blade and a cutting edge which, in an open position and extending from the distal end of the cutting blades towards a distal end of the probe, oppose each other at an acute angle such that when the probe is moved in axial direction towards a distal end of the cutting members, the cutting edges engage each other to establish a cutting action.
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Accused Products
Abstract
A cutting instrument configured as scissors has a housing formed as a handle with a functional unit disposed therein; supported in the functional unit is a probe configured as a hollow needle which co-axially supports a rod projecting from the probe in axial direction and which comprises at its distal end a cutting device and wherein the cutting device has two cutting members provided with cutting blades that can be configured in an arc-shape or a straight shape, wherein from an open position the cutting blades correspond to each other at an acute angle, they are brought into engagement with each other to a closed position for a cutting action by means of a sliding movement of the probe relative to the scissors tip.
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Citations
24 Claims
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1. A micro surgical cutting instrument configured as scissors comprising:
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an elongate housing formed as a handle having two housing parts having semi-circular cross sections which are spread apart against a spring pressure and in operative engagement with a sliding mechanism;
a probe configured as a hollow needle and operatively connected to the sliding mechanism;
a rod axially disposed in the hollow needle in form fitting engagement and secured in a control member of the sliding mechanism against axial displacement;
wherein the probe is moved in axial direction by the control member of the sliding mechanism when the two housing parts are squeezed together;
a cutting device disposed at a distal end of the rod and configured as scissors having two cutting members, each cutting member having one of an arcuate or straight configuration, each cutting member provided with a cutting blade and a cutting edge which, in an open position and extending from the distal end of the cutting blades towards a distal end of the probe, oppose each other at an acute angle such that when the probe is moved in axial direction towards a distal end of the cutting members, the cutting edges engage each other to establish a cutting action. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification