In-line milling system
First Claim
Patent Images
1. An in-line milling system for use with a cutting member, comprising:
- (a) a milling handle having a longitudinal axis;
(b) a milling body adapted to be positioned at least partially within a bone, wherein the milling body comprises a channeled portion adapted to receive the milling handle such that the milling handle can translate within the milling body;
(c) a securing system configured to lock the milling handle to the milling body in at least one pre-determined position to prevent relative translation between the milling body and the milling handle; and
(d) a drill directing joint associated with the milling handle and comprising a drill receiving portion having an end adapted to receive a drill substantially parallel with the longitudinal axis of the milling handle and a cutting member receiving portion connected at an angle to the drill receiving portion and having an end adapted to receive the cutting member such that the cutting member extends along an axis that is not parallel to the longitudinal axis of the milling handle;
wherein the drill receiving portion and the cutting member receiving portion remain connected at the angle to form an angled joint when the cutting member is not secured to the end of the cutting member receiving portion.
1 Assignment
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Accused Products
Abstract
Embodiments of the present invention provide a milling system and method that provides a precise triangular cut in a patient'"'"'s proximal femur. The system allows the surgeon to mill in a single direction, that is, the drill is in the same or similar longitudinal place as the handle of the milling system, preventing the surgeon from having to enter the patient'"'"'s leg at two different angles. The present invention also provides a milling system that can be pre-assembled (e.g., on the back table by a nurse while the surgeon is preparing the site), which enables the milling to take place in one step.
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Citations
42 Claims
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1. An in-line milling system for use with a cutting member, comprising:
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(a) a milling handle having a longitudinal axis; (b) a milling body adapted to be positioned at least partially within a bone, wherein the milling body comprises a channeled portion adapted to receive the milling handle such that the milling handle can translate within the milling body; (c) a securing system configured to lock the milling handle to the milling body in at least one pre-determined position to prevent relative translation between the milling body and the milling handle; and (d) a drill directing joint associated with the milling handle and comprising a drill receiving portion having an end adapted to receive a drill substantially parallel with the longitudinal axis of the milling handle and a cutting member receiving portion connected at an angle to the drill receiving portion and having an end adapted to receive the cutting member such that the cutting member extends along an axis that is not parallel to the longitudinal axis of the milling handle;
wherein the drill receiving portion and the cutting member receiving portion remain connected at the angle to form an angled joint when the cutting member is not secured to the end of the cutting member receiving portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An in-line milling system for use with a cutting member having a substantially straight axis, the system comprising:
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(a) a milling handle having a shaft with a longitudinal axis; (b) a milling body adapted to be positioned at least partially within a bone, wherein the milling body comprises a channeled portion adapted to receive the milling handle such that the milling handle can translate within the milling body; (c) a drill directing portion associated with the milling handle, the drill directing portion comprising a drill receiving portion and a cutting member receiving portion having an axis, the drill receiving portion and the cutting member receiving portion connected to one another to form an angled joint such that the drill receiving portion is configured to receive a drill in parallel with the longitudinal axis of the milling handle and the cutting member receiving portion is configured to receive the cutting member such that the axes of the cutting member and the cutting member receiving portion are substantially co-linear and are not parallel to the longitudinal axis of the milling handle; and (d) a securing system configured to lock the milling handle to the milling body in at least one pre-determined position to prevent relative translation between the milling body and the milling handle. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for preparing a bone for receiving an implant comprising:
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(a) providing a milling system comprising;
(i) a milling handle having a longitudinal axis;
(ii) a milling body adapted to be positioned at least partially within the bone and comprising a channeled portion adapted to receive the milling handle such that the milling handle can translate within the milling body;
(iii) a cutting member; and
(iv) a drill directing portion associated with the milling handle and comprising a drill receiving portion and a cutting member receiving portion having an axis, the drill receiving portion and the cutting member receiving portion connected to one another to form an angled joint, such that the drill receiving portion is configured to receive a drill substantially parallel with the longitudinal axis of the milling handle and the cutting member receiving portion is configured to receive the cutting member such that the cutting member extends along an axis that is not parallel to the longitudinal axis of the milling handle;(b) assembling the milling system by (i) inserting the milling handle into the channeled portion of the milling body;
(ii) locking the milling handle and the milling body together to prevent relative translation between the milling handle and the milling body; and
(iii) securing the cutting member to the cutting member receiving portion of the drill directing portion such that the axis of the cutting member and the axis of the cutting member receiving portion are substantially co-linear;(c) inserting the assembled milling system into the bone; and (d) activating the drill to rotate the cutting member to form a triangular-shaped cavity in the bone. - View Dependent Claims (25, 26, 27)
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28. A method for preparing a bone for receiving an implant comprising:
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(a) selecting from a plurality of implants having a triangular-shaped portion an implant having a desired size; (b) providing a milling system comprising;
(i) a milling handle having a longitudinal axis;
(ii) a milling body adapted to be positioned at least partially within the bone and comprising a channeled portion adapted to receive the milling handle such that the milling handle can translate within the milling body;
(iii) a cutting member; and
(iv) a drill directing portion associated with the milling handle and comprising a drill receiving portion and a cutting member receiving portion, wherein the drill receiving portion is configured to receive a drill substantially parallel with the longitudinal axis of the milling handle and the cutting member receiving portion is configured to receive the cutting member such that the cutting member extends along an axis that is not parallel to the longitudinal axis of the milling handle, wherein the drill receiving portion and the cutting member receiving portion remain connected at an angle to form an angled joint when the cutting member is not secured to the cutting member receiving portion;(c) assembling the milling system by (i) inserting the milling handle into the channeled portion of the milling body;
(ii) selecting from at least two pre-determined relative positions of the milling handle and the milling body the desired relative position of the milling handle and the milling body based at least partially on the desired size of the implant and locking the milling handle and the milling body in the desired pre-determined relative position to prevent relative translation between the milling body and the milling handle; and
(iii) securing the cutting member to the cutting member receiving portion such that the cutting member extends along an axis that is not parallel to the longitudinal axis of the milling handle;(d) inserting the assembled milling system into the bone; and (e) activating the drill to rotate the cutting member to form a triangular-shaped cavity in the bone. - View Dependent Claims (29, 30, 31)
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32. An in-line milling system for use with a cutting member comprising:
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(a) a milling handle having a shaft with a longitudinal axis; (b) a milling body adapted to be positioned at least partially within a bone, wherein the milling body comprises a channeled portion adapted to receive the milling handle such that the milling handle can translate within the milling body; (c) a drill directing portion associated with the milling handle, the drill directing portion comprising a drill receiving portion having an end and a cutting member receiving portion having an end, wherein the drill receiving portion end is adapted to receive a drill in parallel with the longitudinal axis of the milling handle, and the cutting member receiving portion end is adapted to receive the cutting member such that the cutting member extends along an axis that is not parallel with the longitudinal axis of the milling handle, wherein the drill receiving portion and the cutting member receiving portion remain connected at an angle to form an angled joint when the cutting member is not secured to the cutting member receiving portion end; and (d) a securing system adapted to rigidly lock the milling handle to the milling body in at least one pre-determined position to prevent relative translation between the milling body and the milling handle.
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33. An in-line milling system for use with a cutting member comprising:
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(a) a milling handle having a shaft with a longitudinal axis; (b) a milling body adapted to be positioned at least partially within a bone, wherein the milling body comprises a channeled portion adapted to receive the milling handle such that the milling handle can translate within the milling body; and (c) a drill directing portion associated with the milling handle, the drill directing portion comprising a drill receiving portion and a cutting member receiving portion, wherein the drill receiving portion is adapted to receive a drill in parallel with the longitudinal axis of the milling handle and the cutting member receiving portion is adapted to receive the cutting member at an angle that is not parallel with the longitudinal axis of the milling handle, wherein the drill receiving portion and the cutting member receiving portion remain connected at an angle to form an angled joint when the cutting member is not secured to the cutting member receiving portion, and wherein the cutting member receiving portion is adapted to apply torque about a substantially straight axis shared by both the cutting member receiving portion and a cutting member in use; and (d) a securing system configured to lock the milling handle to the milling body in at least one pre-determined position to prevent relative translation between the milling body and the milling handle.
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34. A method for preparing a bone for receiving an implant comprising:
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(a) providing an in-line milling system comprising;
(i) a milling handle having a longitudinal axis;
(ii) a milling body adapted to be positioned at least partially within the bone and having a length and a channeled portion adapted to receive the milling handle such that the milling handle can translate within the milling body;
(iii) a drill directing portion associated with the milling handle and comprising a drill receiving portion and a cutting member receiving portion adapted to receive a cutting member such that the cutting member is oriented at an angle relative to the longitudinal axis of the milling handle, wherein the drill receiving portion and the cutting member receiving portion remain connected at an angle to form an angled joint when the cutting member is not secured to the cutting member receiving portion;(b) inserting the milling handle into the channeled portion of the milling body; (c) selecting from a plurality of pre-determined relative positions of the milling handle and the milling body the desired relative position of the milling handle and the milling body and locking the milling handle and the milling body in the desired pre-determined relative position by inserting a cross bar associated with the milling handle into one of a plurality of indentations located along the length of the milling body; (d) inserting the milling system into the bone; and (e) activating a drill to rotate the cutting member to form a triangular-shaped cavity in the bone. - View Dependent Claims (35)
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36. An in-line milling system for use with a cutting member, comprising:
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(a) a milling body adapted to be positioned at least partially within a bone and having a channeled portion and a ledge; (b) a milling handle having a longitudinal axis, a shaft, and a notched receiver, wherein the shaft slides into and is received by the channeled portion of the milling body; (c) a drill directing portion extending from the milling handle, wherein the drill directing portion comprises a drill receiving portion having an end and a cutting member receiving portion having an end, wherein the drill receiving portion has an axis parallel to the longitudinal axis of the milling handle, wherein the cutting member is located between the cutting member receiving portion end and the notched receiver, and wherein the drill receiving portion and the cutting member receiving portion remain connected at an angle to form an angled joint when the cutting member is not secured to the cutting member receiving portion end; and (d) a securing system configured to lock the milling body to the milling handle in at least one pre-determined position to prevent relative translation between the milling body and the milling handle and to hold the cutting member in a desired position relative to the ledge. - View Dependent Claims (37, 38)
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39. A method for preparing a bone for receiving an implant comprising:
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(a) inserting a milling handle into a milling body adapted to be positioned at least partially within the bone; (b) locking the milling handle and the milling body together to prevent relative translation between the milling handle and the milling body; (c) securing a cutting member to the milling handle by sliding a locking member distally to fully engage a shank of the cutting member, wherein the milling handle comprises a drill receiving portion and a cutting member receiving portion that remain connected at an angle to form an angled joint when the cutting member is not secured to the milling handle; (d) inserting the assembled milling system into the bone; and (e) activating a drill to rotate the cutting member to form a triangular-shaped cavity in the bone.
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40. An in-line milling system for use with a cutting member comprising:
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(a) a milling handle having a shaft with a longitudinal axis; (b) a milling body adapted to be positioned at least partially within a bone and having a channeled portion and a conical portion, a distal end of the conical portion defining a ledge, the channeled portion and the conical portion adapted to receive the shaft of the milling handle; and (c) a securing system adapted to rigidly lock the milling handle to the milling body in at least one pre-determined position to prevent relative translation between the milling body and the milling handle, wherein the cutting member is associated with the milling handle and the at least one pre-determined position places the cutting member relative to the ledge and wherein the milling handle comprises a drill receiving portion and a cutting member receiving portion that remain connected at an angle to form an angled joint when the cutting member is not associated with the milling handle.
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41. An in-line milling system for use with a cutting member comprising:
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(a) a milling handle having a shaft with a longitudinal axis; (b) a milling body adapted to be positioned at least partially within a bone, wherein the milling body comprises a channeled portion adapted to receive the milling handle such that the milling handle can translate within the milling body; (c) a drill directing portion connected to the milling handle, the drill directing portion comprising a drill receiving portion and a cutting member receiving portion adapted to receive the cutting member, the drill receiving portion having an axis substantially parallel with the longitudinal axis of the milling handle and the cutting member receiving portion having an axis that is not parallel with the longitudinal axis of the milling handle, wherein the drill receiving portion and the cutting member receiving portion remain connected at an angle to form an angled joint when the cutting member is not secured to the cutting member receiving portion, and wherein the cutting member receiving portion is adapted to apply torque about a substantially straight axis shared by both the cutting member receiving portion and the cutting member in use; and (d) a securing system adapted to rigidly lock the milling handle to the milling body in at least one pre-determined position to prevent relative translation between the milling body and the milling handle.
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42. A method for preparing a bone for receiving an implant comprising:
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(a) inserting longitudinally a shaft of a milling handle into a channel portion of a milling body, the milling handle having a longitudinal axis; (b) selecting from a plurality of pre-determined relative positions of the milling handle and the milling body the desired relative position of the milling handle and the milling body; (c) locking the milling handle and the milling body in the desired pre-determined relative position; (d) securing a cutting member to a cutting member receiving portion of the milling handle; (e) connecting a drill to a drill receiving portion of the milling handle, the drill receiving portion having an axis substantially parallel to the longitudinal axis of the milling handle, wherein the drill receiving portion and the cutting member receiving portion remain connected at an angle to form an angled joint when the cutting member is not secured to the cutting member receiving portion; (f) inserting the assembled milling system into the bone; and (g) activating the drill to rotate the cutting member to form a triangular-shaped cavity in the bone.
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Specification