US PATENT SUBCLASS 604 / 209
.~.~.~.~.~.~.~ By rachet and pawl


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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}
181  DF  .~.~.~ Means moved by person to inject or remove fluent material to or from body inserted conduit, holder, or reservoir {3}
187  DF  .~.~.~.~ Injector or aspirator syringe supported only by person during use (e.g., hand held hypodermic syringe, douche tube with forced injection, etc.) {13}
207  DF  .~.~.~.~.~ Having means for metering material flow to or from body {1}
208  DF  .~.~.~.~.~.~ Including means for controlling piston stroke length {3}
209.~.~.~.~.~.~.~ By rachet and pawl


DEFINITION

Classification: 604/209

By ratchet and pawl:

(under subclass 208) Subject matter wherein the piston moving means comprises a bar or wheel having teeth engaged by a propelling pawl.