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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0333360 (1994-11-02) |
| 발명자 / 주소 |
|
| 인용정보 | 피인용 횟수 : 740 인용 특허 : 0 |
An endoscope has a sterilizable, elongated, optical capsule section and a separable, disposable, sterile channel section. The capsule has a window at a distal end in front of an image sensor. Image transmitting electronic cables, connected to the image sensor, extend proximally from the capsule. Lig
An endoscope has a sterilizable, elongated, optical capsule section and a separable, disposable, sterile channel section. The capsule has a window at a distal end in front of an image sensor. Image transmitting electronic cables, connected to the image sensor, extend proximally from the capsule. Light transmitting fibers extend from the window proximally for transmitting light to a site under investigation from a remote light source. The cables and the fibers are housed in a common conduit connected to the proximal end of the capsule. The channel section has a distal end removably attached to the capsule and has plurality of longitudinal channels for transmitting fluids or for receiving an operative instrument. A flexible tube is connected to the proximal end of each channel for supplying fluid or for manipulating the operative instrument from a remote location. The separable section is disposable after use. The capsule is sterilizable for reuse with another sterile separable section on the next patient. The separable channel section can be used with a conventional endoscope. The conventional endoscope can be covered with a sterile sheath to minimize resterilization thereof. An umbilicated balloon catheter or a telescopic catheter can be used to position the tethered endoscope in a passageway. Circumferentially spaced fluid vents can supply jets of gas or liquid selectively to position the endoscope. Alternatively, a magnet can be used for manipulating a capsule with a ferrous housing along a passageway by use of a strong magnet located exteriorally thereof.
An improved endoscope comprising: a first segment comprising a substantially cylindrical capsule including distal and proximal ends and a first curved exterior surface, said capsule further including a transparent window at said distal end and a first substantially planar mating surface opposite sai
An improved endoscope comprising: a first segment comprising a substantially cylindrical capsule including distal and proximal ends and a first curved exterior surface, said capsule further including a transparent window at said distal end and a first substantially planar mating surface opposite said first exterior surface; an image sensor mounted adjacent said window and within said first segment; at least one image transmitting cable connectable to said image sensor and extending proximally from said first segment for transmitting an image signal from said image sensor to a video control unit and then to a remote image display device; at least one light transmitting fiber having a distal end adjacent said window within said first segment and extending proximally from said first segment for transmitting light to a surgical site from a remote light source; and a second segment comprising a separable disposable section having at least one longitudinal opening for transmitting fluids or for receiving an operative instrument and further having a second curved exterior surface and a second substantially planar mating surface opposite said second exterior surface, said second substantially planar mating surface being releasably attachable to said first substantially planar mating surface of said capsule such that there is formed a substantially planar interface between said first and second segments, wherein said first and second segments, when attached along said first and second mating surfaces, together form a cylindrical endoscope having a contiguous smooth curved exterior surface and a substantially circular cross-sectional shape, such that after use on a patient, said second segment is disposable while said first segment is sterilizable for reuse with a new segment on another patient.
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