Cannulated tissue anchor insertion system
First Claim
1. A surgical instrument for inserting a cannulated surgical implant into a surgical site, the instrument comprising:
- a surgical implant assembly comprising an elongated needle for slidably receiving said implant thereon, said needle having a proximal end and a distal end, an elongated pusher for pushing said implant distally from said needle, said pusher having a proximal end and a distal end, an elongated tube for slidably retaining said implant, said needle and said pusher, said tube having a proximal end and a distal end;
first moving means for moving said needle distally a first predetermined distance; and
second moving means for moving said pusher distally a second predetermined distance to thereby slide said implant along said needle and distally from said tube.
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Accused Products
Abstract
A system for inserting a cannulated tissue anchor during endoscopic or other surgical procedures. The system incorporates an insertion instrument for inserting into a surgical site of implantation an elongated generally cylindrical tissue anchor having, for example, a plurality of barbs outwardly extending from its body and a transverse head situated at its proximal end. The anchor may be inserted by a single-handed operation of the instrument through a series of sequential pulls of a trigger, each pull affecting motion of a particular element. In a preferred embodiment, three trigger pulls are sufficient to penetrate the site of implantation and deliver the anchor slidably along the needle. The instrument operates with replaceable subassemblies each containing a particular size cannulated anchor, having a longitudinally slidable needle for guiding the anchor into place and a longitudinally slidable push rod for pushing the anchor along the needle.
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Citations
35 Claims
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1. A surgical instrument for inserting a cannulated surgical implant into a surgical site, the instrument comprising:
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a surgical implant assembly comprising an elongated needle for slidably receiving said implant thereon, said needle having a proximal end and a distal end, an elongated pusher for pushing said implant distally from said needle, said pusher having a proximal end and a distal end, an elongated tube for slidably retaining said implant, said needle and said pusher, said tube having a proximal end and a distal end; first moving means for moving said needle distally a first predetermined distance; and second moving means for moving said pusher distally a second predetermined distance to thereby slide said implant along said needle and distally from said tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A surgical instrument for inserting a cannulated surgical implant into a surgical site, the instrument comprising:
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a surgical implant assembly comprising an elongated needle for slidably receiving said implant thereon, said needle having a proximal end and a distal end, an elongated pusher for pushing said implant distally from said needle, said pusher having a proximal end and a distal end, an elongated tube for slidably retaining said implant, said needle and said pusher, said tube having a proximal end and a distal end; first moving means for moving said needle distally a first predetermined distance, said first moving means comprising; a first cam means for producing a first predetermined motion of an element associated therewith; a first slide member comprising; means to engage said needle to enable motion of said first slide member to effect motion of said needle; first track means to enable said first slide member to move in a direction aligned with said distal end of said needle; and first cam follower means for following said first cam means; second moving means for moving said pusher distally a second predetermined distance to thereby slide said implant along said needle and distally from said tube, said second moving means comprising; a second cam means for producing a second predetermined motion of an element associated therewith; a second slide member comprising; means to engage said pusher to enable motion of said second slide member to effect motion of said pusher; second track means to enable said second slide member to move in a direction aligned with said distal end of said pusher; and second cam follower means for following said second cam means; and
a housing for retaining said surgical implant assembly adjacent said first and second moving means. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A surgical instrument for inserting a cannulated surgical implant into a surgical site, the instrument comprising:
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an elongated needle for slidably receiving said implant thereon, said needle having a proximal end and a distal end; an elongated pusher for pushing said implant distally from said needle, said pusher having a proximal end and a distal end; first moving means for moving said needle distally a first predetermined distance, said first moving means comprising; a first cam means for producing a first predetermined motion of an element associated therewith; a first slide member comprising; means to engage said needle to enable motion of said first slide member to effect motion of said needle; first track means to enable said first slide member to move in a direction aligned with said distal end of said needle; and first cam follower means for following said first cam means; second moving means for moving said pusher distally a second predetermined distance to thereby slide said implant along said needle, said second moving means comprising; a second cam means for producing a second predetermined motion of an element associated therewith; a second slide member comprising; means to engage said pusher to enable motion of said second slide member to effect motion of said pusher; second track means to enable said second slide member to move in a direction aligned with said distal end of said pusher; and second cam follower means for following said second cam means. - View Dependent Claims (26)
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27. A surgical implant assembly selectively attachable to an instrument for inserting a cannulated surgical implant, comprising:
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a cannulated implant; an elongated needle for slidably receiving said implant thereon, said needle having a proximal end and a distal end; an elongated pusher for pushing said implant distally from said needle, said pusher having a proximal end and a distal end; and an elongated tube for slidably retaining said implant, said needle and said pusher, said tube having a proximal end and a distal end. - View Dependent Claims (28)
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29. A surgical system for inserting a selected length cannulated surgical implant into a surgical site, the system comprising:
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a plurality of varying length surgical implant assemblies each comprising an elongated needle for slidably receiving a selected length implant thereon, said needle having a proximal end and a distal end, an elongated pusher for pushing said selected length implant distally from said needle, said pusher having a proximal end and a distal end, an elongated tube for slidably retaining said selected length implant, said needle and said pusher, said tube having a proximal end and a distal end; an instrument for receiving a selected one of said plurality of surgical implant assemblies, said instrument comprising; a housing; first moving means for moving said needle distally a first selected predetermined distance; second moving means for moving said pusher distally a second selected predetermined distance to thereby slide said selected implant along said needle and distally from said tube; a plurality of interchangeable activating means, each associated with a predetermined one of said selected length implants, each said activating means for controlling motion of said first and second moving means; trigger means for moving said activating means; and means for interposing a selected one of said activating means between said trigger means and said first and second moving means.
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30. A method for implanting a cannulated surgical implant comprising:
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providing within a housing a surgical implant assembly comprising an elongated needle for slidably receiving said implant thereon, said needle having a proximal end and a distal end, an elongated pusher for pushing said implant distally from said needle, said pusher having a proximal end and a distal end, an elongated tube for slidably retaining said implant, said needle and said pusher, said tube having a proximal end and a distal end; positioning said implant on said needle and within the distal end of said elongated tube; positioning said distal end of said elongated tube at a selected site of implantation; providing a trigger means on said housing for cyclical motion to sequentially move said needle and said pusher; moving the needle from said elongated tube into the site of implantation; moving the pusher from said elongated tube to thereby move said implant along the needle and into the site of implantation; and withdrawing said needle from the site of implantation. - View Dependent Claims (31, 32, 33, 34, 35)
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Specification