Drill guide assembly
View Patent ↗A drill guide assembly having an elongated body is configured with a first and second arm members extending from the elongated body. The second arm member is configured and adapted to be longitudinally movable along the elongated body towards and away from the first arm member for reducing fractured bones for repair. A guide housing provided on the second arm member is fitted with a removable sleeve. The removable sleeve is provided with a longitudinal bore for guiding a guide wire or a drill bit for drilling into the bones.
1. An orthopedic drill guide assembly comprising:
an elongated body having first and second ends;
a first arm member attached to and extending away from said first end of the elongated body and terminating at an outer end tip;
a second arm member extending from said elongated body and having a base portion and an outer end, wherein the base portion is configured and adapted to engage the elongated body and allow the second arm member to be longitudinally movable along said elongated body, said second arm member extending from the elongated body in the same direction as the first arm member and terminating at the outer end;
a guide housing provided on the first arm member at the first arm member's outer end that is away from the elongated body, the guide housing comprising: a cylindrical shape with a sleeve-receiving bore extending longitudinally therethrough and defining an inner surface; and an annular groove provided on the outer surface of the guide housing; and
a substantially cylindrical-shaped sleeve extending between a first end and a second end and removably received in said guide housing's bore, the sleeve comprising:
a flared head portion provided at the first end for stopping the sleeve when the sleeve is inserted into the guide housing;
a retention tab extending longitudinally toward the second end from the flared head portion for cooperating with the guide housing for retaining the sleeve in the guide housing, wherein the retention tab is provided with a spring-loaded detent that cooperates with the annular groove on the outer surface of the guide housing for retaining the sleeve in the guide housing; and
a longitudinal bore.
2. The orthopedic drill guide assembly of claim 1 , wherein said elongated body is radiolucent.
3. The orthopedic drill guide assembly of claim 2 , wherein said elongated body is made from a polyetheretherketone polymer.
4. The orthopedic drill guide assembly of claim 1 , wherein said first arm member is radiolucent.
5. The orthopedic drill guide assembly of claim 4 , wherein said first arm member is made from a polyetheretherketone polymer.
6. The orthopedic drill guide assembly of claim 5 , wherein the outer end tip of said first arm member is radiopaque.
7. The orthopedic drill guide assembly of claim 1 , wherein said first arm member is radiopaque.
8. The orthopedic drill guide assembly of claim 1 , wherein said first arm member having an alignment notch provided near the first arm's outer-end tip and said longitudinal bore of the sleeve is in longitudinal alignment with said alignment notch when the sleeve is received in the guide housing.
9. The orthopedic drill guide assembly of claim 1 , wherein said second arm member engaging said elongated body by a ratcheting mechanism.
10. The orthopedic drill guide assembly of claim 9 , wherein said ratcheting mechanism comprises a plurality of one-way ratcheting teeth provided on the elongated body and said second arm member configured and adapted with a ratchet release mechanism.
11. The orthopedic drill guide assembly of claim 1 , wherein said elongated body has a non-cylindrical shape and said second arm member is configured and adapted to engage said-non-cylindrical shape whereby the second arm member is only longitudinally movable along the elongated body without any rotational movement about the elongated body.
12. The orthopedic drill guide assembly of claim 1 , wherein said sleeve has a cylindrical body and said guide housing comprises a sleeve-receiving bore for receiving the cylindrical body of the sleeve.
13. The orthopedic drill guide assembly of claim 1 , wherein said sleeve and said guide housing configured and adapted with a retention mechanism preventing the sleeve from falling out of the guide housing.
14. The orthopedic drill guide assembly of claim 1 , wherein said guide housing is provided with at least one spike extending towards the first arm member whereby one or more bone pieces positioned between the first and second arm members is secured between said at least one spike and said first arm's outer end by moving the second arm member towards the first arm member.
15. The orthopedic drill guide assembly of claim 1 , wherein said elongated body having a non-symmetric lateral cross-sectional shape.
16. The orthopedic drill guide assembly of claim 15 , wherein said non-symmetric lateral cross-sectional shape is a rectilinear shape with a chamfered corner.
17. The orthopedic drill guide assembly of claim 1 , further wherein said guide housing is provided with at least one spike extending towards the first arm member whereby one or more bone pieces positioned between the first and second arm members is secured between said at least one spike and said first arm's outer end by moving the second arm member towards the first arm member.
18. The device of claim 1 , wherein the sleeve is provided with an alignment tab and the guide housing further comprises a plurality of grooves provided longitudinally along the inner surface of the sleeve-receiving bore.
19. A surgical drill guide kit for repairing Lisfranc injury comprising:
a drill guide assembly comprising:
an elongated body having first and second ends;
a first arm member attached to and extending away from said first end of the elongated body and terminating at an outer end tip;
a second arm member extending from said elongated body and having a base portion and an outer end, wherein the base portion is configured and adapted to engage the elongated body and allow the second arm member to be longitudinally movable along said elongated body, said second arm member extending from the elongated body in the same direction as the first arm member and terminating at the outer end;
a guide housing provided on the first arm member at the first arm member's outer end that is away from the elongated body, said guide housing comprising: a cylindrical shape with a sleeve-receiving bore extending longitudinally therethrough and defining an inner surface; and an annular groove provided on the outer surface of the guide housing;
one or more sleeves, each sleeve having a first end and a second end and configured for inserting into the sleeve-receiving bore, the sleeve comprising:
a flared head portion provided at the first end for stopping the sleeve when the sleeve is inserted into the guide housing;
a retention tab extending longitudinally toward the second end from the flared head portion for cooperating with the guide housing for retaining the sleeve in the guide housing, wherein the retention tab is provided with a spring-loaded detent that cooperates with the annular groove on the outer surface of the guide housing for retaining the sleeve in the guide housing; and
a longitudinal bore;
one or more K-wires;
one or more bone screws; and
a depth gage.
20. The surgical drill guide kit of claim 19 further comprising a clamp.
21. The surgical drill guide kit of claim 20 , further comprising a blunt trocar.