Removable cassette for articular injection system

摘要

Systems for injecting fluids and/or other materials into a targeted anatomical location, in particular, an intra-articular space, include a handpiece assembly having a proximal end and a distal end, a needle extending from the distal end of the handpiece assembly, a fluid delivery module comprising a cassette and a fluid transfer device. A conduit is generally configured to place the fluid delivery module in fluid communication with the handpiece assembly. Medications, formulations and/or other fluids or materials contained within vials that are secured to the fluid delivery module can be selectively delivered into an anatomy through a needle located at the distal end of the handpiece assembly. In some embodiments, ultrasound or other imaging technologies can be used to locate a joint or other targeted anatomical location.

主权项

1. A removable cassette for use in an injection system, comprising:
a housing defining an interior space; a first loading area configured to be placed in fluid communication with a first container; a second loading area configured to be placed in fluid communication with a second container; a first reservoir configured to be placed in fluid communication with an interior of the first container, and a second reservoir configured to be placed in fluid communication with an interior of the second container; wherein the first and second reservoirs are at least partially positioned within the interior space of the cassette; a first movable member slidably disposed within the first reservoir; a second movable member slidably disposed within the second reservoir; wherein the cassette is configured to be removably secured to a fluid delivery module of the injection system; wherein the first movable member is configured to be moved into or out of at least a portion of an interior of the first reservoir using at least one motor of the fluid delivery module; wherein the second movable member is configured to be moved into or out of at least a portion of an interior of the second reservoir using the at least one motor; at least one fluid outlet in fluid communication with the first and second reservoirs; wherein at least a portion of a fluid contained within the container is configured to be transferred to an interior of the first reservoir when the first movable member is moved in a first direction; wherein at least a portion of the fluid contained within the first reservoir is configured to be transferred to the at least one fluid outlet when the first movable member is moved in a second direction, wherein said second direction is generally opposite of said first direction; and wherein the first and second movable members are configured to be moved by a single motor.