| 摘要 |
A medical device for introducing fluid treating material to or removing a fluid material from a body cavity of a human or animal, including: a hollow, needle-like structure (44) having a proximal end (32) and a distal end, the proximal end having a beveled tip (34) and being formed from a polymer which is sufficiently rigid at ambient temperature to permit puncture of skin by the beveled tip, and which becomes soft after a predetermined period of time exposed to body temperature and body fluids, thus preventing bodily trauma; and a hub (36) attached to the distal end of the hollow needle-like structure and having a diameter greater than that of the hollow needle-like structure, the hub including a connector (60) for attachment of a handle (62) or a device for introducing fluid treating material to or removing fluid from the body cavity.
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