Endoscopic instrument for performing endoscopic procedures or examinations
First Claim
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1. An endoscopic system comprising an endoscopic instrument and a light source, said endoscopic instrument comprising:
- a shaft, a handle arranged at a proximal end of said shaft, at least one working part arranged at a distal end of said shaft, and at least one fluorescent marking, having a fluorescing substance that can be excited to fluoresce by a light source, said marking is provided at a distal end section of said endoscopic instrument, wherein said fluorescing substance is selected in such a way that its excitation range lies in an excitation range of a tumor-specific photosensitizer applied to tissue surrounding said endoscopic instrument, said light source is selected in a way that it only emits light of specific wavelength ranges matching excitation ranges of both said fluorescent marking of said instrument and the tissue surrounding said endoscopic instrument to which said tumor specific photosensitizer has been applied, therefore said same light source can excite both fluorescence phenomena.
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Abstract
An endoscopic instrument, comprises a shaft, a handle arranged at a proximal end of said shaft, at least one working part arranged at a distal end of said shaft, and at least one marking having a fluorescing substance that can be excited to fluoresce by a light source, said marking is provided at a distal end section of said instrument. Said fluorescing substance is selected in such a way that its exciting range lies in an excitation range of a tumor-specific photosensitizer or in an excitation range of a tissue autofluorescence.
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Citations
44 Claims
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1. An endoscopic system comprising an endoscopic instrument and a light source, said endoscopic instrument comprising:
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a shaft, a handle arranged at a proximal end of said shaft, at least one working part arranged at a distal end of said shaft, and at least one fluorescent marking, having a fluorescing substance that can be excited to fluoresce by a light source, said marking is provided at a distal end section of said endoscopic instrument, wherein said fluorescing substance is selected in such a way that its excitation range lies in an excitation range of a tumor-specific photosensitizer applied to tissue surrounding said endoscopic instrument, said light source is selected in a way that it only emits light of specific wavelength ranges matching excitation ranges of both said fluorescent marking of said instrument and the tissue surrounding said endoscopic instrument to which said tumor specific photosensitizer has been applied, therefore said same light source can excite both fluorescence phenomena. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An endoscopic system comprising an endoscopic instrument and a light source, said endoscopic instrument comprising:
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a shaft, a handle arranged at a proximal end of said shaft, at least one working part arranged at a distal end of said shaft, and at least one fluorescent marking, having a fluorescing substance that can be excited to fluoresce by a light source, said marking is provided at a distal end section of said endoscopic instrument, wherein said fluorescing substance is selected in such a way that its excitation range lies in an excitation range of a tissue-autofluorescence of tissue surrounding said endoscopic instrument, said light source is selected in a way that it only emits light of specific wavelength ranges matching excitation ranges of both said fluorescent marking of said instrument and said tissue auto-fluorescence of the tissue surrounding said endoscopic instrument, therefore said same light source can excite both fluorescence phenomena. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification