| 摘要 |
A disposable sheath (10) for endoscope (20) includes a tubular sleeve portion (12) and a lens cover portion (14) at one end of the tubular sleeve portion (12). The lens cover portion (14) is of a predetermined thickness that minimizes light reflection onto the field of view of the endoscope (20). The sheath (10) thus provides optimum visual acuity when used with the endoscope (20). The lens cover portion (14) can include an anti-fogging ingredient to minimize condensation or congregation of fluids during examination. The sheath (10) may be rigid or flexible. The lens cover portion (14) can be joined to the inside, outside or end of the tubular sleeve (10). The lens cover portion (64) can be formed with a cap section (66) that is oriented at a selected predetermined angle with respect to a central axis. The sheath (10) can have one or more reduced diameter sections (92,94,96) to prevent relative slippage between the sleeve (10) and the barrel (30) of the endoscope (20). The sheath can also be incorporated in a cover (100) for covering the entire endoscope (20). The cover (100) includes a drape portion (102) that covers the main body portion of the endoscope (20) and a sheath portion (104) detachably joinable to the drape portion (102) or integrally joined thereto. <IMAGE> |
