Variable angle drill guide

Patent metadata

Field	Value
Publication number	US-2023172621-A1
Application number	US-202117541676-A
Country	US
Kind code	A1
Filing date	Dec 3, 2021
Priority date	Dec 3, 2021
Publication date	Jun 8, 2023
Grant date	—

Abstract

A drill guide handle configured to engage a variable angle drill guide, including: a handle grip; a first cannula extending from a proximal end of the drill guide handle to a distal end of the drill guide handle, wherein the first cannula is configured to provide a zero degree insertion angle for a drill bit; and a body including: a first tab and a second tab wherein the first and second tabs include a first and second tab protrusion, respectively, wherein each of the first tab and the second is configured to flex so that the first and second tab protrusions engage a horizontal groove on a variable angle drill guide; and a body protrusion on an inner surface of the body, wherein the body protrusion is configured to engage a vertical grove on the variable angle drill guide.

First claim

What is claimed is:

1 . An drill guide handle configured to engage a variable angle drill guide, comprising:
a handle grip; a first cannula extending from a proximal end of the drill guide handle to a distal end of the drill guide handle, wherein the first cannula is configured to provide a zero degree insertion angle for a drill bit; and a body comprising:
a first tab and a second tab wherein the first and second tabs include a first and second tab protrusion, respectively, wherein each of the first tab and the second is configured to flex so that the first and second tab protrusions engage a horizontal groove on a variable angle drill guide; and
a body protrusion on an inner surface of the body, wherein the body protrusion is configured to engage a vertical grove on the variable angle drill guide.

2 . The drill guide handle of claim 1 , wherein body comprises:
first tab border opening configured to form the first tab, wherein an outer surface of the first tab substantially conforms with an outer surface of the body; and second tab border opening configured to form the second tab, wherein an outer surface of the second tab substantially conforms with the outer surface of the body.

3 . The drill guide handle of claim 2 , wherein first tab and the second tab extend substantially along a direction of an axis of the cannula from the proximal end to the distal end of the drill guide handle.

4 . The drill guide handle of claim 2 , wherein first tab and the second tab extend in a direction substantially perpendicular to an axis of the cannula from the proximal end to the distal end of the drill guide handle.

5 . The drill guide handle of claim 1 , wherein the first tab and the second tab extend substantially away from the body in a direction of an axis of the cannula from the proximal end to the distal end of the drill guide handle.

6 . The drill guide handle of claim 5 , wherein the body further comprises
a first tab stop configured to limit the flexing motion of the first tab; and a second tab stop configured to limit the flexing motion of the second tab.

7 . The drill guide handle of claim 1 , wherein the cannula includes a proximal cannula portion and a distal cannula portion, wherein the cross-sectional size of the proximal cannula portion is larger than the cross-sectional size of the distal cannula portion.

8 . The drill guide handle of claim 7 , wherein proximal cannula portion is configured to accept a driver.

9 . The drill guide handle of claim 8 , wherein further comprises a middle cannula portion with a cross-sectional shape complementary to the end of the driver, wherein the middle cannula section is configured to grip the end of the driver.

10 . The drill guide handle of claim 7 , wherein cross-sectional area of the distal cannula portion configured to accommodate a drill bit passing therethrough.

11 . The drill guide handle of claim 1 , wherein the body has bottom edge with a chamfer on the inner side.

12 . The drill guide handle of claim 1 , further comprising a second cannula extending from the proximal end of the drill guide handle to the distal end, wherein the second cannula configured to provide a insertion angle for a drill bit having a second angle and wherein the distal end of the second cannula intersects with the distal end of the first cannula.

13 . The drill guide handle of claim 12 , further comprising a third cannula extending from the proximal end of the drill guide handle to the distal end, wherein the third cannula configured to provide a insertion angle for a drill bit having a third angle and wherein the distal end of the third cannula intersects with the distal ends of the first cannula and the second cannula.

14 . The drill guide handle of claim 11 , further comprising a drill guide stop inside the body configured to stop the drill guide when engaged with the drill guide handle and configured to align the first and second tabs with the horizontal grooves.

15 . The drill guide handle of claim 1 , wherein the variable angle drill guide comprises:
a frustoconical body with a first opening at a narrower distal end and second opening at a wider the proximal end; and a grip surrounding the wider proximal end, where the grip includes horizontal grooves and vertical grooves.

16 . The drill guide handle of claim 15 , wherein the narrower distal end includes threads on an outer surface of the distal end, wherein the thread are configured to engage threads in a plate hole of a bone plate.

17 . A method of inserting a variable angle drill guide into the bone using the drill guide handle of claim 16 , comprising:
connecting the drill guide handle to the variable angle drill guide by sliding the drill guide handle over the grip of the drill guide until the first and second tabs engage the horizontal grooves and where sliding the drill guide handle over the grip further includes aligning the body protrusion with one of the vertical grooves on the grip; screwing the threads of the variable angle drill guide into a plate hole of the bone plate; drilling a hole in the bone by placing the drill bit in the first cannula, wherein the drilled hole is a zero degree insertion angle hole; and unscrewing the threads of the variable angle drill guide from the plate hole of the bone plate.

18 . The method of claim 17 , further comprising:
inserting a driver into the cannula of the drill guide handle prior to screwing the screwing the threads of the variable angle drill guide into a plate hole of the bone plate, wherein screwing the threads of the variable angle drill guide into the plate hole of the bone plate includes rotating the driver, and unscrewing the threads of the variable angle drill guide from the plate hole of the bone plate includes rotating the driver.

19 . A method of inserting a variable angle drill guide into the bone using the drill guide handle of claim 16 , comprising:
connecting the drill guide handle to the variable angle drill guide by sliding the drill guide handle over the grip of the drill guide until the first and second tabs engage the horizonal grooves and where sliding the drill guide handle over the grip further includes aligning the body protrusion with one of the vertical grooves on the grip; screwing the threads of the variable angle drill guide into a plate hole of the bone plate; removing the drill guide handle from the variable angle drill guide; drilling a hole in the bone by placing the drill bit in the variable angle drill guide, wherein the drilled hole has an insertion angle other than zero degrees; reconnecting the drill guide handle to the variable angle drill guide; and unscrewing the threads of the variable angle drill guide from the plate hole of the bone plate.

20 . The method of claim 19 , further comprising:
inserting a driver into the cannula of the drill guide handle prior to screwing the screwing the threads of the variable angle drill guide into a plate hole of the bone plate, wherein screwing the threads of the variable angle drill guide into a plate hole of the bone plate includes rotating the driver, and unscrewing the threads of the variable angle drill guide from the plate hole of the bone plate includes rotating the driver.

Assignees

• Depuy Synthes Products Inc

Inventors

• Mcgurk Michael
• Défossez Henri
• Wampfler Simon
• Spreiter Gregor
• Gueissaz Frederic
• Schweizer Marcel
• Ghammar Said
• Baeriswyl Andreas
• Rocci Mirko
• DANIEL Steffan

Classifications

• A61B2090/034

  abutting on parts of the device itself · CPC title

• A61B17/1728 Primary

  for holes for bone plates or plate screws · CPC title

• A61B2090/067

  for measuring angles · CPC title

• A61B2017/00469

  for insertion of instruments, e.g. guide wire, optical fibre · CPC title

• A61B2090/0807

  Indication means · CPC title