Apparatus and method of delivery of substances into target tissue
OwnerBarbara Wanamaker McLean, Sherry Thomasinventors
Life of this patent
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Abstract
A barrel having a sharp cutting end is inserted into an animal body to form a channel connected to a pocket in the target tissue. A piston head mounted in the barrel has a chamber housing a solid element which contains a substance for treating the target tissue. Means associated with the piston head such as a push rod received in the piston bore is utilized to expel the solid element from the chamber into the pocket. The treating substance such as a capsule containing a liquid, gel or other substance is released from the capsule and coats the target tissue in the pocket.
Claims9
A method of treating an animal having diseased internal target tissue comprising the steps of:
- forming a channel through skin and tissue and forming a pocket in the target tissue, the channel and pocket being in communication;
- and the pocket having walls;
- inserting a module containing a treating substance for the target tissue through said channel into the pocket;
- releasing said substance from the module element;
- and depositing the substance into the target tissue or cavity.
An instrument assembly for placing a solid treating element into target tissue comprising in combination:
- A barrel having a sharp end for cutting through tissue of an animal subject and for forming a pocket in target tissue, said barrel having a second distal end;
- A piston having a head downwardly mounted in the barrel;
- A hollow piston rod extending from the piston head to a proximal position above the second end of the barrel;
- A push rod mounted for axial translation in the hollow piston rod, said push rod having a distal end extending into the piston head and a proximal end extending above the distal position of the end of the piston rod;
- means associated with the piston head for holding the solid, treating element;
- and
- means associated with the push rod for expelling the solid treating element from the piston head into the pocket within the target tissue.
Dependencies are inferred from the claim text.