Description: 604 surgery / 604 surgery/(19) means for introducing or removing material from body for therapeutic purposes (e.g., medicating, irrigating, aspirating, etc.) (48) treating material introduced into or removed from body orifice, or inserted or removed subcutaneously other than by diffusing through skin (93.01) material introduced or removed through conduit, holder, or implantable reservoir inserted in body (104) having means expanding body orifice or canal (e.g., dilator, retaining means, etc.) (106) expanding arm or finger (107) expansion actuated by axially movable member (108) rotatable means actuates axially movable member
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