Surgical instrument with tissue recognition
First Claim
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1. An electrosurgical device for impacting a biological tissue by means of an electrical discharge comprising:
- an instrument comprising an electrode, which can be connected to an electrical source;
a plurality of light-recording devices arranged radially around the electrode and oriented in an axial direction toward respective portions of biological tissue to record in respective light-recording fields light emitted from a spark hitting the respective portions of biological tissue, the light-recording fields extending from the plurality of light-recording devices to the portions of biological tissue and arranged radially around the electrode;
a light-analysis device configured to determine tissue type of the portions of biological tissue by means of spectral analysis of the light emitted by the spark and recorded by the light-recording devices; and
an indicator device for displaying a color corresponding to the determined tissue type and for indicating the radial direction relative to the electrode of the portions of the biological tissue having the respective tissue type,wherein the indicator device comprises projection means to project the colored light corresponding to the determined tissue type into the light-recording fields.
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Abstract
An electrosurgical device for recognizing tissue by means of spectral analysis of the light generated at an electrode. An acoustic or optical indicator device displays the tissue type permanently or when detecting certain tissue. Indicators, in particular optical indicators, are arranged in the application field of view, so as to support the user in response to making an incision.
22 Citations
12 Claims
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1. An electrosurgical device for impacting a biological tissue by means of an electrical discharge comprising:
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an instrument comprising an electrode, which can be connected to an electrical source; a plurality of light-recording devices arranged radially around the electrode and oriented in an axial direction toward respective portions of biological tissue to record in respective light-recording fields light emitted from a spark hitting the respective portions of biological tissue, the light-recording fields extending from the plurality of light-recording devices to the portions of biological tissue and arranged radially around the electrode; a light-analysis device configured to determine tissue type of the portions of biological tissue by means of spectral analysis of the light emitted by the spark and recorded by the light-recording devices; and an indicator device for displaying a color corresponding to the determined tissue type and for indicating the radial direction relative to the electrode of the portions of the biological tissue having the respective tissue type, wherein the indicator device comprises projection means to project the colored light corresponding to the determined tissue type into the light-recording fields. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification