US PATENT SUBCLASS 604 / 104
.~.~.~ Having means expanding body orifice or canal (e.g., dilator, retaining means, etc.)

Current as of: June, 1999
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604 /   HD   SURGERY

19  DF  MEANS FOR INTRODUCING OR REMOVING MATERIAL FROM BODY FOR THERAPEUTIC PURPOSES (E.G., MEDICATING, IRRIGATING, ASPIRATING, ETC.) {7}
48  DF  .~ Treating material introduced into or removed from body orifice, or inserted or removed subcutaneously other than by diffusing through skin {9}
93  DF  .~.~ Material introduced or removed through conduit, holder, or implantable reservoir inserted in body {30}
104.~.~.~ Having means expanding body orifice or canal (e.g., dilator, retaining means, etc.) {2}
105  DF  .~.~.~.~> Expanding bow
106  DF  .~.~.~.~> Expanding arm or finger {2}

DEFINITION

Classification: 604/104

Having means expanding body orifice or canal (e.g., dilator, retaining means, etc.):

(under subclass 93) Subject matter wherein specific structure is provided for distending or stretching a body opening or vessel.

(1) Note. Many devices inserted in a body orifice will enlarge it. However, a patent is classified as an original in this subclass only if it includes a recitation in the claimed subject matter of specific structure for dilating a body orifice, such as "ridges projecting outwardly from the surface of the nozzle for enlarging a body orifice". Conversely, use of terminology such as "a dilating nozzle" in claimed subject matter is not a recitation of structure which will include a patent herein.

SEE OR SEARCH CLASS

606, Surgery,

191+, for dilators from the body.