IP Library Granted Patent US 11,730,496
Granted Patent B2
US 11,730,496 · App. 17/671,853 · Granted Aug 22, 2023

Alignment instruments and methods for use in total ankle replacement

Inventors: Daniel J. Lee (Denver, CO); Joseph Dogué (Aurora, CO); Randy Allard (Golden, CO); Francis D. Barmes (Parker, CO); Mark Ray Dalton (Austin, TX); Albert Dacosta (Lone Tree, CO); Spanky Raymond (Uniontown, OH)
Assignee: Paragon 28, Inc.
A61B17/1775A61B17/68A61B90/13A61F2/4202A61F2/4606A61B2017/681
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,730,496
App. No.
17/671,853
Granted
Aug 22, 2023
Kind
B2
Abstract

Alignment instruments may include joint-line referencing systems having an alignment arm having a body with first and second portions defining first and second sides. The first portion has at least one first pin tube through-hole extending from the first to the second side. The second portion has a first opening on the first side. A pin tube guide member is receivable in the first through-hole. The pin tube guide member has a passageway therethrough. An angelwing alignment member includes a portion receivable in the first opening of the alignment arm. An alignment foot is secured to the second portion, and the alignment foot has a handle and a shim. The shim is positionable in a joint between a first bone and a second bone, the alignment arm is alignable relative to a first bone, and the pin tube guide is operable for securing a pin into the first bone.

Claims (56)

1. A surgical method, comprising:

providing a joint-line referencing system, comprising:

an alignment arm comprising a body having a first portion and a second portion, said first portion and said second portion defining a first side and a second side, said first portion having at least one first through-hole extending from said first side to said second side, the second portion having at least one first opening on said first side;

a first linear member receivable in said at least one first through-hole;

an angelwing alignment member having a portion receivable in said at least one first opening of said alignment arm; and

an alignment foot secured to said second portion, said alignment foot comprising a handle extending away from said first side and a shim extending away from said second side;

placing the shim of the alignment foot adjacent to a joint between a tibia and a talus of a patient;

inserting the first linear member in the at least one first through-hole of the alignment arm;

moving the handle of the alignment foot to position or orient the alignment arm;

inserting a first pin into a passageway of the first linear member and into the tibia of the patient; and

removing the joint-line referencing system from the joint and the first pin.

2. The surgical method of claim 1 , further comprising installing a tibia alignment guide on the installed pin.

3. The surgical method of claim 1 , wherein the first linear member is a pin tube guide member.

4. The surgical method of claim 1 , wherein the first linear member comprises the passageway extending therethrough.

5. The surgical method of claim 1 , further comprising:

inserting a second linear member in a second through-hole of the alignment arm.

6. The surgical method of claim 5 , wherein the second through-hole is positioned below the first through-hole.

7. The surgical method of claim 6 , wherein the second linear member is a pin tube guide member and comprises a passageway extending therethrough.

8. A surgical method, comprising:

providing a joint-line referencing system, comprising:

an alignment arm comprising:

a body having a first portion and a second portion, wherein the first portion comprises at least one first through-hole, at least one second through-hole, and the second portion comprises at least one opening;

a first linear member and a second linear member;

an angelwing alignment member having a portion receivable in the at least one opening of said alignment arm; and

an alignment foot secured to said second portion of the body, said alignment foot having a handle and a shim extending away from the alignment foot;

placing the shim of the alignment foot adjacent to a joint between a tibia and a talus of a patient;

inserting the first linear member into the at least one first through-hole and the second linear member in the at least one second through-hole;

moving the handle of the alignment foot to position or orient the alignment arm; and

removing the joint-line referencing system from the joint.

9. The surgical method of claim 8 , wherein the body of the alignment arm comprises a first portion and a second portion, said first portion and said second portion defining a first side and a second side.

10. The surgical method of claim 9 , wherein the handle extends away from the first side and the shim extends away from the second side.

11. The surgical method of claim 8 , wherein the first and second linear members are pin tube guide members.

12. The surgical method of claim 11 , further comprising:

inserting a first pin into a passageway of the first linear member; and

inserting a second pin into a passageway of the second linear member.

13. The surgical method of claim 12 , further comprising:

installing an alignment system on at least one of the first and second pins, wherein at least one of the first and second pins are coupled with the tibia of a patient.

14. The surgical method of claim 8 , wherein removing the joint-line referencing system further comprises simultaneously removing the shim from a position adjacent to the joint and the alignment arm from a first pin.

15. A surgical method comprising:

providing a joint-line referencing system, comprising:

an alignment arm;

a first linear member and a second linear member;

an angelwing alignment member; and

an alignment foot secured to said alignment arm, said alignment foot comprising a shim and a handle;

placing the shim of the alignment foot adjacent to a joint between a tibia and a talus of a patient;

inserting the first linear member into a first through-hole of the alignment arm;

inserting a first pin into a passageway of the first linear member;

inserting the second linear member into a second through-hole of the alignment arm;

inserting a second pin into a passageway of the second linear member;

moving the handle of the alignment foot to position or orient the alignment arm; and

removing the joint-line referencing system from the joint.

16. The surgical method of claim 15 , wherein the first and second linear members are pin tube guide members.

17. The surgical method of claim 15 , wherein the moving is based on a position or an orientation of an angelwing alignment member operably attached to the alignment arm.

18. The surgical method of claim 15 , wherein the moving is based on a position or an orientation of a rod operably attached to the angelwing alignment member.

19. The surgical method of claim 15 , further comprising projecting a laser line from a laser device operably attached to the alignment arm, and wherein the moving is based on a position or an orientation of the laser line.

20. The surgical method of claim 15 , further comprising installing an alignment guide on at least one of the first and second pins.

Assignments (6)
RELEASE OF SECURITY INTEREST Recorded Apr 22, 2025
From: ARES CAPITAL CORPORATION
To: PARAGON 28, INC.; PARAGON ADVANCED TECHNOLOGIES, INC.
Reel/Frame 070908/0038 →
RELEASE OF INTELLECTUAL PROPERTY SECURITY INTEREST AT REEL/FRAME NO. 62354/0016 Recorded Nov 11, 2023
From: MIDCAP FUNDING IV TRUST, AS AGENT
To: PARAGON 28, INC.; PARAGON ADVANCED TECHNOLOGIES, INC.
Reel/Frame 065548/0364 →
RELEASE OF INTELLECTUAL PROPERTY SECURITY INTEREST AT REEL/FRAME NO. 62354/0006 Recorded Nov 10, 2023
From: MIDCAP FINANCIAL TRUST, AS AGENT
To: PARAGON 28, INC.; PARAGON ADVANCED TECHNOLOGIES, INC.
Reel/Frame 065548/0313 →
SECURITY INTEREST Recorded Nov 2, 2023
From: PARAGON 28, INC.; PARAGON ADVANCED TECHNOLOGIES, INC.
To: ARES CAPITAL CORPORATION
Reel/Frame 065448/0214 →
SECURITY AGREEMENT SUPPLEMENT (TERM) Recorded Jan 11, 2023
From: PARAGON 28, INC.; PARAGON ADVANCED TECHNOLOGIES, INC.
To: MIDCAP FINANCIAL TRUST
Reel/Frame 062354/0006 →
SECURITY AGREEMENT SUPPLEMENT (REVOLVING)) Recorded Jan 11, 2023
From: PARAGON 28, INC.; PARAGON ADVANCED TECHNOLOGIES, INC.
To: MIDCAP FUNDING IV TRUST
Reel/Frame 062354/0016 →
Continuity (5)
Continuation 17345406 · Jun 11, 2021
Continuation PCTUS2019066149 · Dec 13, 2019
Provisional Application 62899655 · Sep 12, 2019
Provisional Application 62779436 · Dec 13, 2018
Related Publication 20220167999A1 · Jun 2, 2022