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US 7,621,895 B2Granted
Needle array devices and methods
AssigneeAbbott Cardiovascular Systems Inc.
InventorsGeoffrey H. Willis, Eric Willis, Shuji Uemura, Mike Stewart, Alfredo Cantu
Life of this patent
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Abstract
Methods and delivery devices for maximizing injectate dispersion in lesioned tissue using needle-based injection devices are herein disclosed. The delivery devices include injection devices with various needle arrays and/or modified needle tip configurations. The needle tip configurations can include linear, hooked or corkscrew tips and/or multiple circumferential openings.
Claims6
A substance delivery device comprising:
- a body comprising a proximal end, a distal end and having a lumen;
- a retractable needle array at the distal end comprising a plurality of retractable tubes coupled between a plurality of needles and the lumen, the plurality of needles in fluid communication with the plurality of retractable tubes and with the lumen;
- flexible webbing connected to the plurality of retractable tubes and between the plurality of retractable tubes to stabilize a deployment of the needles;
- and
- a knob at the proximal end connected to the needle array within the body, wherein the knob moves the needle array from a retracted position to an exposed position to cause the deployment of the needles,
- wherein, in an exposed position, each of the plurality of needles defined a non-linear pathway for an injectate to be dispersed therethrough.
3 more elements
Dependencies are inferred from the claim text.