Needleless injection device components, systems, and methods
AssigneeAMS Research Corporation
InventorJustin M. Crank
Life of this patent
Estimating the term…
Abstract
Described are needleless injection systems (100) and methods that involve features including one or more of a tissue tensioner (114) and a fitting (111) for attaching to a distal end of a shaft, exemplary embodiments including: an elastic sleeve (10) sized to fit under tension about the distal end of a flexible scope, such as an endoscope; a non-metal, polymeric tube-like device being optionally attached to the elastic sleeve for delivering a therapeutic fluid to a treatment site within a patient wherein the elastic sleeve may include an integral balloon (tissue tensioner) feature that can be used to position the injection orifice of the tube-like device proximate a treatment area.
Claims26
A tissue tensioner assembly capable of being connected to an elongate shaft, the tissue tensioner assembly comprising
- a tissue tensioner comprising an expandable surface capable of exhibiting an expanded state and a non-expanded state, and
- a fitting connected to the tissue tensioner, the fitting capable of attaching the tissue tensioner to a shaft.
(canceled)
9-12. (canceled)
An elongate shaft capable of injecting fluid into tissue, the shaft comprising
- a working shaft comprising a working shaft proximal end, a working shaft distal end, and a working lumen extending between the working shaft proximal end and the working shaft distal end,
- an injection shaft comprising an injection shaft proximal end and an injection shaft distal end, the injection shaft moveably disposed within the working lumen, and
- a tissue tensioner located at the injection shaft distal end, the tissue tensioner comprising an expandable surface capable of exhibiting an expanded state and a non-expanded state.
(canceled)
An elongate shaft capable of injecting fluid into tissue, the shaft comprising
- a working shaft comprising a working shaft proximal end and a working shaft distal end, and
- an injection shaft comprising an injection shaft proximal end and an injection shaft distal end,
- wherein the injection shaft distal end is attached to the working shaft distal end by a removable fitting.
20-22. (canceled)
26-56. (canceled)
(canceled)
Dependencies are inferred from the claim text.