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US 5,876,116 AGranted
Integrated bone cement mixing and dispensing system
OwnerDonald Barker, James P. Seatoninventors
Life of this patent
Estimating the term…
Abstract
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 of the present invention 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 are in direct communication with each other. In this way, the mixing chamber is operated independently of the delivery chamber for preparing the bone cement and, once prepared, easily transferred from the mixing chamber through the delivery chamber for immediate use.
Claims34
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
- a. an enlarged entry portal for receiving the bone cement components, and
- b. 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 delivery tube comprising
- a. a proximal end mounted to the exit portal of the mixing vessel in cooperating association therewith,
- b. a distal end incorporating a cement delivering outlet portal, and
- c. an elongated interior delivery zone extending between the proximal end and the outlet portal;
- D. at least one mixing blade removably mountable in the mixing vessel and being rotationally driven therein for fully intermixing the components forming the bone cement;
- E. elongation movement control means
- a. removably mounted in axially extending relationship in the delivery tube extending substantially the entire length thereof,
- b. rotationally movable within the delivery tube, and
- c. 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 due to the rotating movement thereof;
- and
- F. position control means cooperatively associated with the delivery tube and the mixing vessel to enable the delivery tube to be movable from
- a. a first position wherein the interior of the mixing vessel and the interior delivery zone of the delivery tube are sealed from each other, and
- b. a second position wherein the interior of the mixing vessel and the interior zone of the delivery tube are in communication with each other;
- whereby 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 advanced from the mixing vessel to the outlet portal for direct use.
15 more elements
An integrated mixing and delivery 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
- a. an enlarged entry portal for receiving the bone cement components, and
- b. 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 delivery tube comprising an elongated hollow member incorporating
- a. a proximal end mounted to the exit portal of the mixing vessel in cooperating association therewith,
- b. a distal end incorporating a cement delivering outlet portal, and
- c. an elongated interior delivery zone extending between the proximal end and the outlet portal;
- D. at least one said mixing blade affixed to a first elongated rod member and removably mountable in the mixing vessel and being rotationally driven therein for fully intermixing the components forming the bone cement;
- E. movement control means comprising substantially continuous, ramped, radially extending, helical or spiral shaped threads formed on a second elongated rod member and being removably mountable 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;
- and
- F. position control means cooperatively associated with the delivery tube and the mixing vessel to enable the delivery tube to be movable from
- a. a first position wherein the interior of the mixing vessel and the interior delivery zone of the delivery tube are sealed from each other, and
- b. a second position wherein the interior of the mixing vessel and the interior zone of the delivery tube are in communication with each other;
- whereby 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 advanced from the mixing vessel to the outlet portal for direct use.
12 more elements
An integrated mixing and delivery 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
- a. an enlarged entry portal for receiving the bone cement components, and
- b. 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 comprising
- a. a proximal end in cooperative interengagement therewith,
- b. a distal end incorporating a cement delivery outlet portal, and
- c. an elongated interior delivery zone extending between the proximal end and the outlet portal;
- D. at least one mixing blade affixed to a first elongated rod member and removably mountable in the mixing vessel for being rotationally driven therein for fully intermixing the components forming the bone cement;
- E. movement control means removably 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;
- and
- F. position control means
- a. cooperatively associated with the delivery tube and the mixing vessel to enable the delivery tube to be movable from
- 1. a first position wherein the interior of the mixing vessel and the interior delivery zone of the delivery tube are sealed from each other, and
- 2. a second position wherein the interior of the mixing vessel and the interior zone of the delivery tube are in communication with each other, and
- b. comprising a support plate radially extending from the delivery tube and holding means mountable to the mixing vessel with the support plate of the delivery tube positioned therebetween to enable the arcuate movement of the delivery tube relative to the mixing vessel, with portal zones formed in the proximal end of said delivery tube, cooperating with the exit portal of the mixing vessel, said position control means providing a first position wherein said portals are sealed from each other and a second position wherein said portals are aligned, enabling communication therebetween;
- whereby 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 advanced from the mixing vessel to the outlet portal for direct use.
14 more elements
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
- a. an enlarged entry portal for receiving the bone cement components, and
- b. 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 comprising
- a. 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,
- c. an elongated interior delivery zone extending between the proximal end and the outlet portal, and
- d. a structure for peripherally surrounding and blocking movement control means when said delivery tube is in a first position, while revealing a portion of the movement control means when said delivery tube is moved to a second position, thereby assuring exposure of the movement control means to the mixed bone cement in the mixing vessel when desired;
- D. at least one mixing blade removably mounted in the mixing vessel and being rotationally driven therein for fully intermixing the components forming the bone cement;
- E. movement control means removably 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;
- and
- F. position control means cooperatively associated with the delivery tube and the mixing vessel to enable the delivery tube to be movable from
- a. a first position wherein the interior of the mixing vessel and the interior delivery zone of the delivery tube are sealed from each other, and
- b. a second position wherein the interior of the mixing vessel and the interior zone of the delivery tube are in communication with each other;
- whereby 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 advanced from the mixing vessel to the outlet portal for direct use.
13 more elements
Dependencies are inferred from the claim text.