End structure of endoscope
First Claim
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1. An end structure of an endoscope comprising:
- a front end body of a cylindrical insertion portion to be inserted in a human body;
a fluid discharge opening provided on a front surface of said front end body;
a front end cap detachably attached to said front end body, said front end cap including a projection, spaced from said front surface of said front end body and partially covering said front surface of said front end body; and
a fluid injection nozzle, said projection and said front end body forming said fluid injection nozzle therebetween.
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Abstract
An end structure of an endoscope includes a front end body of a cylindrical insertion portion to be inserted in a human body, a fluid discharge opening which opens into the front end body, a front end cap detachably attached to the front end body and having a fluid injection nozzle connected to the fluid discharge opening. A projection is provided on the end cap, is fitted in the fluid discharge port, and constitutes at least a part of the fluid injection nozzle.
262 Citations
15 Claims
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1. An end structure of an endoscope comprising:
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a front end body of a cylindrical insertion portion to be inserted in a human body; a fluid discharge opening provided on a front surface of said front end body; a front end cap detachably attached to said front end body, said front end cap including a projection, spaced from said front surface of said front end body and partially covering said front surface of said front end body; and a fluid injection nozzle, said projection and said front end body forming said fluid injection nozzle therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An end structure of an endoscope comprising:
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a front end body of a cylindrical insertion portion to be inserted in a human body; a front end cap detachably attached to said front end body; and marks provided on said front end cap and said front end body, said marks indicating a fitting position of said front end cap and said front end body in a circumferential direction; wherein said marks are formed by a first recess formed on an outer surface of said front end cap and a second recess formed on said front end body so that said first recess can be engaged by said second recess; and wherein a disengaging tool can be engaged in said first recess to remove said front end cap from said front end body.
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14. An end structure of an endoscope comprising:
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a front end body of a cylindrical insertion portion to be inserted in a human body; an opening in a front surface of said front end body; a front end cap detachably attached to said front end body, said front end cap including a portion, wherein said portion is insertable into said opening; and a fluid passage having a fluid emission aperture opening to said front surface of said front end body, a periphery of said fluid emission aperture formed by said portion and said opening. - View Dependent Claims (15)
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Specification