초록 ▼

By providing a single housing comprising a mixing chamber integrally combined with a delivery chamber or tube, a unitary, fully integrated, bone cement mixing and dispensing system is attained which eliminates user exposure or handling of the mixed bone cement. In the present invention, the two cham

By providing a single housing comprising a mixing chamber integrally combined with a delivery chamber or tube, a unitary, fully integrated, bone cement mixing and dispensing system is attained which eliminates user exposure or handling of the mixed bone cement. In the present invention, the two chambers of the integrated system are movable between two alternate positions, a first position wherein each chamber is sealed from the other, and a second position wherein the two chambers in direct communication with each other. In this way the mixing chamber is operated independently from the chamber for preparing the bone cement and, once prepared, is easily transferred from the mixing chamber through the delivery chamber. A dual drive assembly is provided such that it may an independently rotate a mixing blade in a first speed and direction, and independently drive the speed and rotation of a feed controlling element at a second speed and direction. The rate of speed or rotation of the mixing portion is thereby easily controlled to any desired level, relative to the rotational speed of movement of the controlling portion in the delivery chamber.

대표청구항 ▼

[ Having described our invention, what we claim as new and desire to secure by Letters Patent is:] [1.] An integrated mixing and delivering system for fully intermixing bone cement components and delivering the mixed bone cement to a desired location, said system comprising:A. a mixing vessel having

[ Having described our invention, what we claim as new and desire to secure by Letters Patent is:] [1.] An integrated mixing and delivering system for fully intermixing bone cement components and delivering the mixed bone cement to a desired location, said system comprising:A. a mixing vessel havinga. an enlarged entry portal for receiving the bone cement components, andb. an exit portal positioned for enabling the mixed bone cement to pass therethrough;B. cover means removably mountable to the mixing vessel in covering engagement with the entry portal;C. an elongated hollow delivery tube comprisinga. a proximal end constructed for telescopic sliding engagement with the exit portal of the mixing vessel,b. a distal end incorporating a cement delivering outlet portal, andc. an elongated interior delivery zone extending between the proximal end and the outlet portal;D. at least one mixing blade mounted in the mixing vessel and being rotationally driven therein in a first direction for fully intermixing the components forming the bone cement;E. movement control means mounted in the delivery tube and constructed for receiving the mixed bone cement at the proximal end of the delivery tube and controllably advancing the mixed cement through the delivery tube to the outlet portal by rotational movement in a second direction; andF. position control means cooperatively associated with the delivery tube and the mixing vessel to enable the delivery tube to be movable froma. a first position wherein the interior of the mixing vessel and the interior delivery zone of the delivery tube are sealed from each other, andb. a second position wherein the interior of the mixing vessel and the interior zone of the delivery tube are in communication with each other; reby the bone cement components are fully intermixed in a separate zone completely sealed from the delivery tube and, once the cement is mixed, the mixing vessel and delivery tube are moved into communication with each other, enabling the mixed cement to be controllably advance from the mixing vessel to the outlet portal for direct use.