Abstract: A fastener is provided for inserting into a body tissue. The fastener has a head and an anchoring portion comprising a plurality of distally extending legs. Each leg terminates in an anchoring element configured to penetrate tissue and to cause a net lateral resistance force on the leg during penetration. The legs are configured and structured so that when the net lateral resistance force on the anchoring element exceeds a predetermined level, at least a portion of the leg is deflected laterally away from a pre-insertion configuration and so that when the net lateral force is subsequently reduced below the predetermined level, the at least a portion of the leg is biased back toward the pre-insertion configuration.

Abstract: A fastener is provided for attaching body tissue to body tissue or another material to body tissue. The fastener includes a head portion, a body portion, and an anchoring element. The anchoring element is on the distal end of the fastener, and has one or more barbs or similar anchoring devices that are configured to prevent removal of the fastener once it is attached to the body tissue. The head is located on the proximal end of the fastener, and anchors the body tissue or other material when the fastener is attached to the body tissue. The disclosure also provides a driver apparatus for inserting the fasteners. The applicator device includes an indexer for sequentially indexing one or more fasteners, and a driver for applying an insertion force to a fastener that is sufficient to insert the fastener and attach it to body tissue. The disclosure also provides a method of using the fastener and applicator device.

Abstract: A fastener is provided for attaching body tissue to body tissue or another material to body tissue. The fastener includes a head portion, a body portion, and an anchoring element. The anchoring element is on the distal end of the fastener, and has one or more barbs or similar anchoring devices that are configured to prevent removal of the fastener once it is attached to the body tissue. The head is located on the proximal end of the fastener, and anchors the body tissue or other material when the fastener is attached to the body tissue. The disclosure also provides a driver apparatus for inserting the fasteners. The applicator device includes an indexer for sequentially indexing one or more fasteners, and a driver for applying an insertion force to a fastener that is sufficient to insert the fastener and attach it to body tissue. The disclosure also provides a method of using the fastener and applicator device.

Abstract: An applicator for applying a barbed fastener to a body tissue-is provided. The applicator comprises an elongated tubular portion having a longitudinal axis extending from a proximal end to a distal end and having a tube interior sized and configured for receiving the barbed fastener. An elongate driver is disposed at least partially inside the tube interior, the driver having a driver engaging portion at its distal end. The driver engaging portion is adapted to engage the barbed fastener in a firing position adjacent the distal end of the elongated tubular portion. The applicator also comprises; a driver actuator assembly adjacent the driver at its proximal end, the driver actuator assembly being adapted for selectively imparting an impulse force to the driver. The driver is configured for transmitting the impulse force to the barbed fastener.

Abstract: A fastener is provided for inserting into a body tissue. The fastener has a head and an anchoring portion comprising a plurality of distally extending legs. Each leg terminates in an anchoring element configured to penetrate tissue and to cause a net lateral resistance force on the leg during penetration. The legs are configured and structured so that when the net lateral resistance force on the anchoring element exceeds a predetermined level, at least a portion of the leg is deflected laterally away from a pre-insertion configuration and so that when the net lateral force is subsequently reduced below the predetermined level, the at least a portion of the leg is biased back toward the pre-insertion configuration.

Abstract: An applicator for applying a barbed fastener to a body tissue-is provided. The applicator comprises an elongated tubular portion having a longitudinal axis extending from a proximal end to a distal end and having a tube interior sized and configured for receiving the barbed fastener. An elongate driver is disposed at least partially inside the tube interior, the driver having a driver engaging portion at its distal end. The driver engaging portion is adapted to engage the barbed fastener in a firing position adjacent the distal end of the elongated tubular portion. The applicator also comprises; a driver actuator assembly adjacent the driver at its proximal end, the driver actuator assembly being adapted for selectively imparting an impulse force to the driver. The driver is configured for transmitting the impulse force to the barbed fastener.

Abstract: A fastener is provided for attaching body tissue to body tissue or another material to body tissue. The fastener includes a head portion, a body portion, and an anchoring element. The anchoring element is on the distal end of the fastener, and has one or more barbs or similar anchoring devices that are configured to prevent removal of the fastener once it is attached to the body tissue. The head is located on the proximal end of the fastener, and anchors the body tissue or other material when the fastener is attached to the body tissue. The disclosure also provides a driver apparatus for inserting the fasteners. The applicator device includes an indexer for sequentially indexing one or more fasteners, and a driver for applying an insertion force to a fastener that is sufficient to insert the fastener and attach it to body tissue. The disclosure also provides a method of using the fastener and applicator device.