초록 ▼

A method of and apparatus for sealing access openings into blood vessels using an expandable member in the blood vessel on a control member that extends out through the access opening and an applicator which inserts a preformed sealing material into the access opening over the control member to keep

A method of and apparatus for sealing access openings into blood vessels using an expandable member in the blood vessel on a control member that extends out through the access opening and an applicator which inserts a preformed sealing material into the access opening over the control member to keep the control member and expandable member centered in the access opening and withdrawing the collapsed expandable member back through the sealing material after the access opening is sealed.

대표청구항 ▼

[ What is claimed as invention is:] [7.] A system for depositing sealing material in the puncture made through the skin and body tissue of a patient into a body cavity such as a blood vessel to gain access thereto, said system comprising:a temporary sealing assembly including:an elongate control mem

[ What is claimed as invention is:] [7.] A system for depositing sealing material in the puncture made through the skin and body tissue of a patient into a body cavity such as a blood vessel to gain access thereto, said system comprising:a temporary sealing assembly including:an elongate control member having a length greater than the length of the puncture to be sealed and a cross-sectional size smaller than that of the puncture so that said control member passes freely through the puncture,an expandable member mounted on said control member at a first prescribed location axially of said control member, said expandable member having a collapsed condition smaller than that of the puncture for passage therethrough into the body cavity and an expanded condition larger than that of the puncture to prevent passage of said expandable member through the puncture, andexpanding means connected to said control member at a location spaced away from said expandable means a distance greater than the length of the puncture and operatively associated with said expandable member through said control member to selectively expand and contract said expandable member,said control member including coupling means in said control member between said expandable means and said expanding means to allow said control member to be selectively separated and reconnected thereat; and,an applicator including:a sheath member defining a material receiving chamber therein and a projecting end thereon, said material receiving chamber opening onto the projecting end of said sheath member,plunger means slidably mounted in said material receiving chamber and over which said sheath member is movable between an initial position in which the sealing material is housed within said material receiving chamber and a withdrawn position in which said sheath member is withdrawn from around the sealing material while said sealing material is held in position by said plunger means, said plunger means defining a central passage therethrough sized to slidably receive said control member therethrough so that said control member can be separated at said coupling, that portion of said control member connected to said expandable member passed through said sheath member and said passage in said plunger means, and said control member reconnected at said coupling so that said applicator is slidably mounted on said control member between said expandable means and expanding means.