Suprapatellar insertion system, kit and method

Patent metadata

Field	Value
Publication number	US-11253307-B2
Application number	US-201816178948-A
Country	US
Kind code	B2
Filing date	Nov 2, 2018
Priority date	Dec 29, 2011
Publication date	Feb 22, 2022
Grant date	Feb 22, 2022

Abstract

A system is provided for inserting and securing, through a suprapatellar region of a leg, a nail into a medullary canal of a bone. The system can include a flexible sleeve configured to be partially inserted in the leg. The flexible sleeve can define a leading end and a trailing end spaced apart from the leading end along a first axis. The flexible sleeve can define a first cannulation that extends along the first axis between the leading and trailing ends. The first cannulation can be sized to receive therethrough at least the intramedullary nail. The system can further include a retaining member configured support at least a portion of the flexible sleeve. The retaining member can be configured to position the flexible sleeve through the suprapatellar region of the leg such that the flexible sleeve leading end is aligned with the proximal end of the bone. The intramedullary nail can be insertable through the flexible sleeve and into the medullary canal.

First claim

What is claimed:

1. A method for inserting and securing an intramedullary nail into a medullary canal of a bone of a patient, the method comprising:
supporting a flexible sleeve with a retaining member, wherein the flexible sleeve defines a leading end, a trailing end spaced apart from the leading end along a first axis, and a first cannulation extending between the leading and trailing ends along the first axis;
coupling an insertion device to the intramedullary nail, wherein the intramedullary nail defines a curved portion; and
advancing the insertion device and the intramedullary nail into the first cannulation of the flexible sleeve so that the intramedullary nail is advanced through the flexible sleeve and into the medullary canal, wherein the flexible sleeve flexes to accommodate the curved portion of the intramedullary nail during the advancing step.

2. The method of claim 1 , further comprising the step of connecting an aiming device to the insertion device, wherein the aiming device is configured to support a guide sleeve.

3. The method of claim 2 , wherein the bone defines a proximal end and a distal end spaced apart from the proximal end along a first direction, and the aiming device further defines at least one channel, and the method includes the step of inserting the guide sleeve in the at least one channel toward the bone along a second direction that is transverse to the first direction.

4. The method of claim 3 , further comprising the step of inserting at least one anchor through the guide sleeve into engagement with the bone and the intramedullary nail positioned in the medullary canal.

5. The method of claim 1 , further comprising the step of inserting the flexible sleeve into soft tissue of the patient toward the bone, and driving a guide wire through the first cannulation and into the bone.

6. The method of claim 1 , further comprising the step of, driving a guide wire through the first cannulation and into the bone.

7. The method of claim 6 , further comprising the step of inserting a wire guide into the first cannulation, and the driving step comprises driving the guide wire through a first bore of the wire guide.

8. The method of claim 7 , wherein the guide wire is a first guide wire that is driven to a first location of the bone, and the method further comprises the step of inserting a second guide wire through a second bore of the wire guide and into the bone.

9. The method of claim 8 , further comprising the step of rotating the wire guide to reposition the second bore such that the second wire is positioned at a second location of the bone that is different than the first location of the bone.

10. The method of claim 6 , further comprising the step of inserting a cannulated drill bit onto the at least one wire, and guiding the cannulated drill bit into the bone to drill a hole into the medullary canal.

11. The method of claim 1 , wherein the bone is a femur, and the method comprises, prior to the advancing step, bending a knee to an angle that is between about 10 to 20 degrees as defined by an axis of the femur and an axis of a tibia.

12. The method of claim 1 , further comprising the step of inserting a rigid sleeve at least partially in the first cannulation of the flexible sleeve, the rigid sleeve defining a leading end, a trailing end, and a second cannulation extending between the leading end and the trailing end.

Assignees

• Depuy Synthes Products Inc

Inventors

• Limouze Robert
• Powell Sean

Classifications

• A61B17/1764

  for the knee · CPC title

• A61B17/1717 Primary

  for applying intramedullary nails or pins · CPC title

• A61B17/921 Primary

  for intramedullary devices · CPC title

• A61B17/8872

  Instruments for putting said fixation devices against or away from the bone (A61B17/7074, A61B17/808 take precedence) · CPC title

• A61B17/1675

  for the knee · CPC title