High pressure injection system for delivering therapeutic agents having fluid tight connector
AssigneeArthroCare Corporation
InventorYves Arramon
Life of this patent
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Abstract
Methods and systems are provided for the transfer of viscous therapeutic material from one chamber or device to another chamber or device in a fluidly sealed manner, wherein components of the system may be discrete or integrated. The system and methods provide for mixing and dispensing of therapeutic materials such as bone cement.
Claims29
A system for mixing and injecting a viscous material, the system comprising:
- a sealed mixing chamber containing at least a precursor composition such that when the components of the precursor composition are combined, a flowable hardenable viscous material is formed;
- a sealed injection chamber;
- and
- a material transfer mechanism for transferring the viscous material from the mixing chamber to the injection chamber in a sealed manner, wherein the material transfer mechanism is configured to prevent the transfer of the viscous material from the injection chamber back into the mixing chamber.
A method of preparing a flowable settable material for injection into the body, the method comprising:
- attaching a first sealed chamber to a second sealed chamber configured to inject the flowable settable material, said first sealed chamber containing a precursor composition;
- activating the precursor composition to form said flowable settable material in said first sealed chamber;
- transferring said material from the first chamber to the second chamber in a sealed manner;
- and
- injecting the material contained the second chamber into a target site within the body.
A method of performing a vertebroplasty procedure comprising:
- providing an injection chamber for dispensing a bone cement, said injection chamber comprising an entry port;
- attaching a material transfer assembly to said entry port of said injection chamber;
- fluidly coupling a supply cartridge to said material transfer assembly;
- driving said contents of said supply cartridge into said injecting chamber, said contents mixing in said supply cartridge during said driving step to form a settable flowable material;
- dispensing said material from said injection chamber into a vertebral body.
A viscous fluid transfer assembly for fluidly connecting a first barrel and a second barrel of a bone cement injection system, said first barrel comprising an entry port and said second barrel comprising an exit port, said assembly comprising:
- a valve anchor adapted to be coupled with said entry port of said first barrel;
- a valve stem axially movable within a bore of said valve anchor, said stem comprising a fluid ingress, a fluid egress and a passageway therebetween, and an enlarged head distal to said fluid egress, said stem further being associated with said anchor to close and seal said axial bore when said head is manipulated into a seat of said anchor and said stem causes said fluid egress to be covered.
Dependencies are inferred from the claim text.