ANCHOR DEVICE FOR BONE IMPLANTATION DURING SURGICAL PROCEDURES
Provided herein are several embodiments for an anchor device for insertion into a bone, all of which include a post suitable for implantation into a bone, and a cord housing coupled to the post. The cord housing has a lower housing with a cradle for receiving therein at least one cord, and an upper housing with a clamp for placement over the at least one cord inserted into the cradle. The joining of the upper housing to the lower housing forms a cord channel by the cradle and the clamp, to encase the at least one cord placed into the cradle. The cord housing also has means for fastening the upper housing to the lower housing and securing the at least one cord within the cord channel.
1 . An anchor device for insertion into a bone, comprising
a single post suitable for implantation into a bone, and
a cord housing integral with the post, comprising
a lower housing comprising a cradle for receiving therein at least one cord; and
an upper housing comprising a clamp for placement over the at least one cord inserted into the cradle;
wherein the joining of the upper housing to the lower housing forms a single cord channel by the cradle and the clamp, aligned substantially over the post, to encase the at least one cord placed into the cradle; and
means, offset from the single cord channel and the post. for fastening the upper housing to the lower housing.
2 . The anchor device of claim 1 wherein
the lower housing further comprises a lower housing major surface; and
the upper housing further comprises an upper housing major surface;
wherein the upper housing major surface substantially abuts the lower housing major surface when the upper housing is joined to the lower housing and provides a stop to prevent overtightening of the upper housing to the lower housing.
3 . (canceled)
4 . The anchor device of claim 2 wherein
the lower housing further comprises a lower housing minor surface; and
the upper housing further comprises an upper housing minor surface;
wherein the upper housing minor surface substantially abuts the lower housing minor surface when the upper housing is joined to the lower housing and provides a stop to prevent overtightening of the upper housing to the lower housing.
5 . (canceled)
6 . (canceled)
7 . (canceled)
8 . (canceled)
9 . The anchor device of claim 1 wherein
the cord channel comprises a first end portion where the cord enters the cord channel, a middle portion, and a second end portion where the cord exits the cord channel, wherein the first end portion and the second end portion each comprise an outwardly flared surface along an axis defined by the cord encased within and running along the cord channel;
whereby the outwardly flared surfaces enable the cord to bend and flex where the cord enters and exits the cord channel without fraying.
10 . The anchor device of claim 9 wherein the middle portion of the cord channel comprises a non-smooth surface suitable for gripping the at least one cord when inserted therewithin.
11 . The anchor device of claim 10 wherein the non-smooth surface non-smooth surface comprises a plurality of ribs.
12 . (canceled)
13 . (canceled)
14 . The anchor device of claim 1 wherein
the means for fastening comprises a threaded fastener;
the lower housing further comprises a receiving cylindrical portion comprising threads suitable for receiving the threaded fastener; and
the upper housing further comprises an aperture for receiving therethrough the threaded fastener.
15 . The anchor device of claim 14 wherein
the threaded fastener is a screw comprising a head, and
the aperture in the upper housing is countersunk to allow the head of the screw to be substantially flush with the upper housing.
16 . (canceled)
17 . (canceled)
18 . The anchor device of claim 1 wherein
the cradle is partially cylindrical and adapted to receive a single cord;
the clamp is partially cylindrical and adapted for placement over the single cord inserted into the cradle; and
the cord channel formed by clamp and the cradle when the upper housing is joined to the lower housing is substantially cylindrical to encase a single cord placed into the cradle.
19 . The anchor device of claim 18 wherein the cradle provides a cross-sectional profile of greater than half of the cylinder and the clamp provides a cross-sectional profile of less than half of the cylinder; whereby the cord is press fit into the cradle and held in place temporarily until the upper housing is joined to the lower housing.
20 . The anchor device of claim 1 wherein
the cradle is adapted to receive at least two cords;
the clamp is adapted for placement over the at least two cords inserted into the cradle; and
the cord channel formed by clamp and the cradle when the upper housing is joined to the lower housing encases the at least two cords placed into the cradle.
21 . The anchor device of claim 20 wherein the cord channel formed by the clamp and the cradle is an elongated cylinder adapted to encase the at least two cords.
22 . (canceled)
23 . The anchor device of claim 20 wherein the at least two cords are placed within the cradle side by side on a horizontal axis.
24 . The anchor device of claim 20 wherein the at least two cords are placed within the cradle side by side on a vertical axis.
25 . (canceled)
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45 . (canceled)
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47 . (canceled)
48 . The anchor device of claim 1 wherein the means for fastening the upper housing to the lower housing causes the upper housing to press against and secure the at least one cord within the single cord channel.
49 . The anchor device of claim 48 wherein the means for fastening the upper housing to the lower housing does not impinge upon the at least one cord.
50 . The anchor device of claim 10 wherein the non-smooth surface is knurled.