IP Library Granted Patent US 9,949,796
Granted Patent B2
US 9,949,796 · App. 13/728,064 · Granted Apr 24, 2018

Round depth gauge

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Quick Facts
Patent No.
US 9,949,796
App. No.
13/728,064
Granted
Apr 24, 2018
Kind
B2
Abstract

A device for measuring blind holes formed through a bone includes (a) a first elongated rod including a shaft extending from a proximal end to a distal end, the distal end including an increased diameter abutment extending radially outward therefrom, the abutment including a proximal surface formed to contact a portion of the bone adjacent a distal opening of the blind hole to assume a locked configuration with the bone and (b) a second elongated rod extending from a proximal end to a distal end along a longitudinal axis.

Claims (17)

1. A device for measuring blind holes formed through a bone, comprising:

a first elongated rod including a shaft extending from a proximal end to a distal end, the distal end including an increased diameter abutment extending radially outward therefrom, the abutment including a proximal surface formed to contact a portion of the bone adjacent a distal opening of the blind hole to assume a locked configuration with the bone; and

a second elongated rod extending from a proximal end to a distal end along a central longitudinal axis and including a cylindrical insert having a diameter increased relative to a diameter of a proximal portion of the second elongated rod, said cylindrical insert includes a wedge at a distal most end of said second elongated rod, the insert having a groove extending therethrough, the groove being sized and shaped to slidably receive the first rod therethrough, wherein a central longitudinal axis of the insert extends parallel to and is radially offset from the central longitudinal axis of the second elongated rod; and

a cylindrical housing having a substantially cylindrical channel extending therethrough to slidably receive the first and second elongated rods, wherein one of the first and second elongated rods includes markings indicating a depth of a measured blind hole.

2. The device of claim 1 , wherein a longitudinal axis of the groove extends parallel to the longitudinal axis of the second elongated rod.

3. The device of claim 1 , wherein a combined diameter of the insert and the shaft of the first rod is substantially equivalent to a diameter of the blind hole.

4. The device of claim 1 , wherein the abutment has a triangular cross-section.

5. The device of claim 1 , further comprising an opening formed on a side wall of the insert, the opening being open to the groove.

6. The device of claim 5 , wherein the groove forms part of a cylinder.

7. The device of claim 6 , wherein engagement of the abutment with a distal end of the groove prevents the insert from moving distally relative to the abutment.

8. The device of claim 1 , wherein the wedge is configured to guide insertion of the insert into the blind hole.

9. The device of claim 1 , wherein the first rod is slidably received within the second rod.

10. The device of claim 1 , wherein a proximal end of one of the first and second rods includes the markings indicating a depth of insertion of the device into the blind hole.

11. A system for measuring a depth of a blind hole formed through a bone, comprising:

a first elongated rod including a shaft extending from a proximal end to a distal end, the distal end including an increased diameter abutment extending radially outward therefrom, the abutment including a proximal surface formed to contact a portion of the bone adjacent a distal opening of the blind hole to assume a locked configuration with the bone;

a second elongated rod extending from a proximal end to a distal end along a central longitudinal axis, the second elongated rod including a cylindrical insert having a diameter increased relative to a diameter of a proximal portion of the second elongated rod, said cylindrical insert includes a wedge at a distal most end of said second elongated rod, the insert having a groove extending therethrough, the groove being sized and shaped to slidably receive the first rod therethrough, wherein a central longitudinal axis of the insert extends parallel to and is radially offset from the central longitudinal axis of the second elongated rod; and

a cylindrical housing having a substantially cylindrical channel extending therethrough to slidably receive the first and second elongated rods, wherein one of the first and second elongated rods includes markings indicating a depth of a measured blind hole.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 21, 2016
From: SYNTHES USA, LLC
To: DEPUY SYNTHES PRODUCTS, INC.
Reel/Frame 038047/0837 →