Coil fastener applier
First Claim
1. A coil fastener applier comprising:
- a housing having a stationary handle affixed to the housing;
an elongated tubular portion extending distally from the housing;
a drive rod rotatably mounted within the elongated tubular portion and having at least one coil fastener releasably mounted on the drive rod;
a drive assembly including a plurality of gears, at least one of the gears engageable with the drive rod for rotating the drive rod, the drive assembly including an anti-reverse mechanism;
an actuation assembly engageable with the drive assembly; and
a trigger movably mounted on the housing and engageable with the actuator assembly, wherein movement of the trigger in a first direction rotates the drive rod to drive a coil fastener into tissue, and movement of the trigger in a second direction causes the anti-reverse mechanism to disable the actuation assembly from rotating the drive rod.
1 Assignment
0 Petitions
Accused Products
Abstract
There is provided a surgical coil fastener applier for use in applying helical coil fasteners in surgical procedures, such as hernia repair, to affix surgical mesh to tissue. The coil fastener applier includes a housing having a handle extending therefrom and a trigger pivotally mounted on the housing. An elongated tubular portion extends from the housing and includes a drive rod rotatably supported therein and slidably supporting a plurality of coil fasteners thereon. A drive assembly is provided within the housing to rotate the drive rod and coil fasteners. The drive assembly includes an anti-reverse mechanism to allow rotation of the drive rod in only one direction. An actuation assembly is provided within the housing to convert the motion of the trigger into rotary motion for supply to the drive assembly. The drive assembly includes structure to limit the amount of rotary motion supplied to the drive assembly. The drive assembly further includes a ratchet and pawl mechanism to prevent a partial cycling of the coil fastener applier. Also provided are various coil fasteners for use with the coil fastener applier.
882 Citations
17 Claims
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1. A coil fastener applier comprising:
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a housing having a stationary handle affixed to the housing; an elongated tubular portion extending distally from the housing; a drive rod rotatably mounted within the elongated tubular portion and having at least one coil fastener releasably mounted on the drive rod; a drive assembly including a plurality of gears, at least one of the gears engageable with the drive rod for rotating the drive rod, the drive assembly including an anti-reverse mechanism; an actuation assembly engageable with the drive assembly; and a trigger movably mounted on the housing and engageable with the actuator assembly, wherein movement of the trigger in a first direction rotates the drive rod to drive a coil fastener into tissue, and movement of the trigger in a second direction causes the anti-reverse mechanism to disable the actuation assembly from rotating the drive rod. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A coil fastener applier comprising:
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a housing having a stationary handle; a trigger pivotably mounted to the housing; an elongated tubular portion extending from the housing; a drive rod rotatably mounted within the elongated tubular portion, the drive rod slidably supporting a plurality of coil fasteners such that rotation of the drive rod within the elongated tubular portion moves the plurality of coil fasteners toward a distal end of the elongated tubular portion; a drive assembly rotatably mounted within the housing and engageable with the drive rod to rotate the drive rod; an actuation assembly having an idler gear engageable with the drive assembly and a ratchet-plate gear engagable with the trigger, the idler gear being operatively associated with the ratchet-plate gear. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification