Multiple member interconnect for surgical instrument and absorbable screw fastener
First Claim
Patent Images
1. A surgical instrument for delivering a fastener, the surgical instrument comprising:
- a housing including;
an actuation assembly operatively connected to a movable handle; and
a gear assembly operatively connected to the actuation assembly;
an elongate tubular member extending distally from the housing and being configured to receive at least one fastener therein, the elongated tubular member including an inner tube, an outer tube and at least one band, the elongate tubular member defining a central longitudinal axis;
at least one fastener disposed within the elongate tubular member, each fastener defining a central lumen therethrough; and
an introducer disposed at least partially within the elongate tubular member, the introducer advanceable from the elongate tubular member and configured to extend through the lumen of each fastener,wherein advancement of a distal face of the band, into contact with a flared portion of the outer tube, causes at least one fastener to advance distally along the introducer.
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Accused Products
Abstract
A absorbable surgical screw fastener is provided which includes a head and a tapered shaft extending distally of the head. Buttress threads are provided about the tapered shaft to secure the fastener in tissue. The fastener includes slots formed in the head and buttress threads. A gap is provided between the buttress threads in the head to secure a prosthetic. There is also provided a surgical instrument having novel lockout structure to prevent inadvertent actuation.
268 Citations
20 Claims
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1. A surgical instrument for delivering a fastener, the surgical instrument comprising:
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a housing including; an actuation assembly operatively connected to a movable handle; and a gear assembly operatively connected to the actuation assembly; an elongate tubular member extending distally from the housing and being configured to receive at least one fastener therein, the elongated tubular member including an inner tube, an outer tube and at least one band, the elongate tubular member defining a central longitudinal axis; at least one fastener disposed within the elongate tubular member, each fastener defining a central lumen therethrough; and an introducer disposed at least partially within the elongate tubular member, the introducer advanceable from the elongate tubular member and configured to extend through the lumen of each fastener, wherein advancement of a distal face of the band, into contact with a flared portion of the outer tube, causes at least one fastener to advance distally along the introducer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A surgical instrument for delivering a fastener, the surgical instrument comprising:
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a housing including; an actuation assembly; a gear assembly; and a handle assembly including a fixed handle and a movable handle, the movable handle being movable between a pre-fired position and an actuated position; an elongate tubular member extending distally from the housing and including an outer tube and an inner tube, the elongate tubular member being configured to receive at least one fastener therein; an introducer disposed at least partially within the elongate tubular member, the introducer advanceable from the elongate tubular member and configured to receive at least one fastener thereon; a lockout disposed in mechanical cooperation with the elongate tubular member, the lockout being movable from a first position where it prevents relative movement between the movable handle and the fixed handle to a second position where it allows relative movement of the movable handle with respect to the fixed handle, and whereby moving the outer tube proximally a predetermined distance causes the lockout to move from the first position thereof to the second position thereof; and wherein moving the movable handle from the pre-fired position thereof towards the actuated position thereof actuates the actuation assembly which; forces a distal-most fastener to move distally over the introducer and actuates the gear assembly; and causes the distal-most fastener to rotate; and wherein a complete actuation stroke is defined by moving the movable handle a sufficient distance to eject the distal-most fastener from the elongate tubular member. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification