Methods, systems, and kits for implanting articles
First Claim
1. A method for implanting an article within solid tissue, said method comprising:
- providing a radially expandable sleeve defining a lumen;
providing a cannula defining a lumen extending therethrough;
percutaneously inserting the sleeve through a surface of the tissue such that a distal-most end of the sleeve lies adjacent a target site within intramuscular tissue;
introducing the cannula into the tissue through the lumen of the sleeve;
advancing the cannula distally through the lumen of the sleeve until a distal-most end of the cannula reaches the target site and extends beyond the distal-most end of the sleeve, whereupon distal advancement of the cannula through the lumen of the sleeve effectuates radial expansion of the sleeve;
withdrawing the cannula proximally relative to the sleeve to thereby create a cavity in the tissue at the target site that is sized to receive the article; and
advancing the article through the lumen of the cannula and into the cavity in the tissue at the target site.
3 Assignments
0 Petitions
Accused Products
Abstract
Methods, systems, and kits for subcutaneously implanting articles, such as drug inserts and reservoirs. The methods rely on percutaneously forming a tissue tract and radially dilating the tract to a diameter which permits introduction of the article. By fully expanding the lumenal diameter of the tissue tract prior to introduction of the article, damage to the article resulting from passage through a partially expanded tissue tract can be avoided. In the exemplary embodiment, a radially expandable sleeve is first percutaneously introduced to the subcutaneous target site. An assembly of a cannula and dilator is then passed through the sleeve, effecting radial expansion. The dilator is removed and the article is then introduced through a lumen of the cannula.
99 Citations
18 Claims
-
1. A method for implanting an article within solid tissue, said method comprising:
-
providing a radially expandable sleeve defining a lumen; providing a cannula defining a lumen extending therethrough; percutaneously inserting the sleeve through a surface of the tissue such that a distal-most end of the sleeve lies adjacent a target site within intramuscular tissue; introducing the cannula into the tissue through the lumen of the sleeve; advancing the cannula distally through the lumen of the sleeve until a distal-most end of the cannula reaches the target site and extends beyond the distal-most end of the sleeve, whereupon distal advancement of the cannula through the lumen of the sleeve effectuates radial expansion of the sleeve; withdrawing the cannula proximally relative to the sleeve to thereby create a cavity in the tissue at the target site that is sized to receive the article; and advancing the article through the lumen of the cannula and into the cavity in the tissue at the target site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 18)
-
-
10. An improved method for implanting an article within solid tissue, the method being of the type wherein a tissue tract is formed and dilated to permit advancement of the article into the tissue, wherein the improvement comprises:
- providing a radially expandable sleeve;
providing a cannula dimensioned for removable reception within the sleeve;
inserting the sleeve into intramuscular tissue such that a distal-most end of the sleeve is proximate a target site within the tissue;
inserting and advancing the cannula into the sleeve until a distal-most end of the cannula extends beyond the distal-most end of the sleeve and extends into the target site;
manipulating the cannula within the sleeve to create a cavity at the target site within the tissue; and
advancing the article through the cannula and into the cavity created in the target site. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
- providing a radially expandable sleeve;
Specification