Multi-lumen biologic-delivering device
AssigneeCook Medical Technologies LLC
InventorFrank J. Fischer, Jr.
Life of this patent
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Abstract
Arrangements and methods for delivering bioactive agents and/or cells into an extended volume of tissue are disclosed. In one embodiment, a cell-delivering needle arrangement has a tube positioned within a tube and fixedly attached to a wall thereof. In one exemplary method, a cell-delivering needle is advanced into tissue, a suspension of cells is passed through a first lumen and out of side ports, and a suspension of cells is passed through a second lumen and out of a distal opening. Other embodiments are disclosed.
Claims22
A method of delivering a biologic material into an extended volume of tissue of a patient, comprising:
- advancing a distal end region of a biologic-material-delivering needle having an elongated body defining a first lumen, a second lumen, a plurality of side ports associated with said first lumen, an end port associated with said second lumen, and a tissue-penetrating tip through the skin of the patient;
- passing a first suspension of biologic material through said first lumen and out of said plurality of side ports associated with said first lumen to release a biologic material from said plurality of side ports towards tissue adjacent to said elongated body;
- and
- passing a second suspension of biologic material through said second lumen and out of said end port without passing said second suspension through any of said plurality of side ports, to release a biologic material from said end port into tissue of the patient;
- wherein passing a first suspension of biologic material through said first lumen and out of said plurality of side ports associated with said first lumen occurs at a higher pressure than said passing a second suspension of biologic material through said second lumen and out of said end port associated with said second lumen.
A method of delivering a biologic material into an extended volume of tissue of a patient, comprising:
- advancing a distal end region of a biologic-material-delivering needle having an elongated body having a first surface defining a first lumen, a second surface defining a second lumen, a plurality of side ports associated with said first lumen, an end port associated with said second lumen, and a tissue-penetrating tip through the skin of the patient;
- passing a first suspension of biologic material through said first lumen in contact with said first surface and out of said plurality of side ports associated with said first lumen to release a biologic material from said plurality of side ports towards tissue adjacent to said elongated body;
- and
- passing a second suspension of biologic material through said second lumen in contact with said second surface and out of said end port associated with said second lumen to release a biologic material from said end port into tissue of the patient;
- wherein said first suspension of biologic material exiting said plurality of side ports has a higher pressure than said second suspension of biologic material exiting said end port.
Dependencies are inferred from the claim text.