Vacuum device for sealing an anatomical opening
View Patent ↗A device for accessing a hollow organ comprises an elongated body sized for insertion into an entrance passage to the hollow organ, the elongated body including an outer sealing surface engaging an inner surface of the entrance passage and a working channel extending therethrough from a proximal port which, when the elongated body is in the operative position is proximal to a proximal opening of the entrance passage, to a distal port which, when the elongated body is in the operative position, extends distally past a distal opening of the entrance passage into the hollow organ and a plurality of suction holes formed through an outer wall of the elongated body, disposed around a circumference of a portion of the elongated body which, when the elongated body is in the operative position, is located within the entrance passage in combination with a vacuum channel formed in the elongated body for transferring a negative pressure to the suction holes to increase a sealing force applied by tissue of the entrance passage to the outer surface of the elongated body.
1. A method for accessing the uterus, comprising:
inserting an elongated member through the cervix into the uterus so that a distal port of a working channel of the elongated member is open to the uterus while a proximal port of the working channel is open to the proximal side of the cervix, an outer diameter of a sealing portion of the elongated member sealingly engaging an inner wall of the cervix;
applying suction to a vacuum channel of the elongated member to apply a negative fluid pressure to increase a sealing force applied by the sealing portion on the inner wall of the cervix via a plurality of suction holes extending through an outer wall of the sealing portion, the suction holes being arranged circumferentially around the sealing portion; and
accessing the uterus such that an instrument is insertable into the uterus via the working channel.