초록 ▼

A device for sealing an opening or puncture in the wall of a blood vessel, duct or other lumen of a living being. The device includes an elongated tubular body having an outlet at the distal end thereof and which is arranged to be inserted, such as percutaneously, through the puncture in the blood v

A device for sealing an opening or puncture in the wall of a blood vessel, duct or other lumen of a living being. The device includes an elongated tubular body having an outlet at the distal end thereof and which is arranged to be inserted, such as percutaneously, through the puncture in the blood vessel so that the outlet is located within the vessel\s interior. An expandible closure is disposed within the tubular body and is formed so as to be held in a compact configuration therein. The tubular body also includes ejecting means for forcing the closure out of the outlet into the interior of the blood vessel, whereupon the closure automatically expands to form an enlarged engagement surface. A retraction filament is secured to the closure for pulling it to the puncture after the tubular body has been withdrawn from the puncture so that the engagement surface of the closure means hemostatically engages the inner surface of the blood vessel contiguous with the puncture. The filament held taut and taped or otherwise secured in place on the patient\s skin to hold the closure in position. The closure and filament are each formed of a biodegradable material to enable the closure to be left in place. Preferably the closure also includes a non-thrombogenic coating on its surface. The closure is constructed so that when it is opened and is in place sealing the puncture in the blood vessel it doesn\t appreciably block the flow of any blood through the blood vessel.

대표청구항 ▼

A method for sealing a small incision or puncture in tissue separating one portion of the body of a living being from another portion thereof to prevent the flow of a bodily fluid from said one portion to said other portion through said incision or puncture by the introduction of plug means therein,

A method for sealing a small incision or puncture in tissue separating one portion of the body of a living being from another portion thereof to prevent the flow of a bodily fluid from said one portion to said other portion through said incision or puncture by the introduction of plug means therein, said plug means being formed of a material which the body will absorb, said method comprising introducing said plug means into said incision or puncture, said plug means having a first portion extending into said incision or puncture and a second portion configured to conform to the surface of the tissue contiguous with said incision or puncture, and causing said plug means to engage said tissue so that said first portion intimately engages the tissue in said incision or puncture and the second portion intimately engages the surface of said tissue contiguous with said incision or puncture to seal said incision or puncture and thereby prevent communication between said body portions through said incision or puncture, and thereafter leaving said plug means in place, whereupon said incision or puncture is permanently sealed.