TUBULAR SHAFT INSTRUMENT
First Claim
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1. A tubular shaft instrument for separating tissue, comprising:
- a tubular shaft;
a first and a second mouth part each having at least one clamping surface for fixing tissue in a fixing plane, whereby at least one of the mouth parts is joined to the tubular shaft; and
a cutting device having a blade that is for cutting of the fixed tissue and that is displaceable in a cutting direction by means of an actuating device,wherein the blade is displaceably guided substantially parallel to the fixing plane and is preloaded against the fixing plane during cutting by means of a preloading device.
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Abstract
The present application relates to a tubular shaft instrument for separating tissue. The invention relates to a tubular shaft instrument that results in more reliable, cleaner separation of tissue. To achieve this, in contrast to conventional cutting devices, the blade is not displaced through the fixed tissue, but glides over the latter until a complete separation is ascertained.
22 Citations
28 Claims
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1. A tubular shaft instrument for separating tissue, comprising:
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a tubular shaft; a first and a second mouth part each having at least one clamping surface for fixing tissue in a fixing plane, whereby at least one of the mouth parts is joined to the tubular shaft; and a cutting device having a blade that is for cutting of the fixed tissue and that is displaceable in a cutting direction by means of an actuating device, wherein the blade is displaceably guided substantially parallel to the fixing plane and is preloaded against the fixing plane during cutting by means of a preloading device. - View Dependent Claims (2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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4. The tubular shaft instrument according to clam 1,
wherein one of the two mouth parts comprises a blade guide extending along the cutting directions.
Specification