Endoscopic hood
First Claim
1. An endoscopic hood which has a substantially cylindrical cap attached to a distal end of an insertion section of an endoscope to protect the distal end of the insertion section of the endoscope, the cap having a rotation restricting section in an inner surface which, when a treating tool is projected from a distal end of the insertion section of the endoscope, abuts against the treating tool to restrict the treating tool from being rotated about an axial direction of the insertion section of the endoscope.
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Accused Products
Abstract
A rotation restricting section is provided at an inner surface of a cap attached to a distal end portion of an insertion section of an endoscope and is set in abutting contact with a treating tool projected from the distal end of the inserting section to restrict the treating tool from being rotated about an axial direction of the insertion section.
228 Citations
15 Claims
- 1. An endoscopic hood which has a substantially cylindrical cap attached to a distal end of an insertion section of an endoscope to protect the distal end of the insertion section of the endoscope, the cap having a rotation restricting section in an inner surface which, when a treating tool is projected from a distal end of the insertion section of the endoscope, abuts against the treating tool to restrict the treating tool from being rotated about an axial direction of the insertion section of the endoscope.
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6. A method of using an endoscopic hood fixed to an endoscope, the method comprising:
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attaching a cap to a distal end portion of an insertion section of the endoscope to protect the distal end portion of the insertion section of the endoscope; and
restricting an axial rotation of a treating tool when the treating tool is projected from the distal end portion of the insertion section of the endoscope with an interference of a distal end of the treating tool with at least a portion of an inner wall surface of the cap. - View Dependent Claims (7)
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8. An endoscopic hood for attachment to a distal end of an endoscope, the endoscopic hood comprising:
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a body having an interior surface defining a first volume; and
treatment tool rotation restriction means cooperating with the first volume for restricting an axial rotation of a treatment tool at least partially disposed in the first volume. - View Dependent Claims (9, 10, 11)
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12. An endoscope comprising:
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an insertion section having a distal end for insertion into a body, the insertion section further having a treatment tool channel for insertion of a treatment tool; and
an endoscopic hood for attachment to the distal end of the endoscope, the endoscopic hood comprising a body having an interior surface defining a first volume, the endoscopic hood further having treatment tool rotation restriction means cooperating with the first volume for restricting an axial rotation of a treatment tool at least partially disposed in the first volume. - View Dependent Claims (13, 14, 15)
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Specification