IP Library Granted Patent US 11,272,944
Granted Patent B2
US 11,272,944 · App. 17/345,398 · Granted Mar 15, 2022

Resection guides, sweeping reamers, and methods for use in total ankle replacement

Inventors: Daniel J. Lee (Denver, CO); Joseph Dogué (Aurora, CO); Albert Dacosta (Lone Tree, CO); Francis D. Barmes (Parker, CO); Jeffrey Christensen (Everett, WA)
Assignee: Paragon 28, Inc.
A61B17/1775A61B17/15A61B17/66A61B2017/00477
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Quick Facts
Patent No.
US 11,272,944
App. No.
17/345,398
Granted
Mar 15, 2022
Kind
B2
Abstract

Resection guides include a body a plurality of alignment pin through-holes and a plurality of guide through-holes so that the pattern of guide through-holes is operable for receiving a drill for use in resecting the at least a portion of the anatomical structure of the patient. Sweeping reamers include a body having a plurality of alignment pin through-holes and an elongated opening, and a reamer extendable through the elongated opening of the body. Decoupled resection guides include a first body having a plurality of alignment pin through-holes and a second body having a plurality of fixation pin through-holes and at least one guide aperture operable for guiding a cutting tool for use in resecting a portion of the second anatomical structure of the patient. Methods employing the same are disclosed and operable in, for example, total ankle replacement.

Claims (43)

1. A surgical method comprising:

supporting a decoupled resection guide on a plurality of alignment pins attached to an anatomical structure of a patient;

inserting at least one spacer between portions of the decoupled resection guide to operably spread apart anatomical structures of the patient; and

guiding a cutting tool through an aperture in the decoupled resection guide to form a cut in a second anatomical structure of the patient;

wherein the second anatomical structure of the patient comprises a talus.

2. The surgical method of claim 1 , wherein the inserting comprises inserting a pair of spacers between portions of the decoupled resection guide to operably spread apart anatomical structures of the patient.

3. The surgical method of claim 1 , wherein the supporting comprises inserting at least one paddle between the anatomical structures of the patient.

4. The surgical method of claim 1 , wherein the supporting comprises inserting spaced apart paddles between anatomical structures of the patient.

5. A decoupled resection guide comprising:

a first body portion having a first side and an opposite second side, said first body portion having a plurality of alignment pin through-holes extending from said first side to said second side of said first body portion;

a second body portion having a first side and an opposite second side, said second body portion having a plurality of fixation pin through-holes extending from said first side to said second side of said second body portion, said second body portion having at least one guide aperture;

a plurality of connecting pins for movably connecting said first body portion relative to said second body portion;

said plurality of alignment pin through-holes of said first body portion being supportable on a plurality of alignment pins attached to a first anatomical structure of the patient;

said first body portion and said second body portion are operable to separate joint surfaces between the first anatomical structure of the patient and a second anatomical structure of the patient;

said fixation pin through-holes of said second body portion being operable for inserting a plurality of pins therethrough and into the second anatomical structure of the patient;

said at least one guide aperture is operable for guiding a cutting tool for use in resecting a portion of the second anatomical structure of the patient;

at least one paddle movably supported on said connecting pins, said at least one paddle extending from said second sides of said first body portion and said second body portion; and

wherein said at least one paddle comprises a first paddle and a second paddle movably supported on said connecting pins, said paddles extending from said second sides of said first body portion and said second body portion.

6. The decoupled resection guide of claim 5 , further comprising a spacer positionable between said second body portion and said at least one paddle.

7. The decoupled resection guide of claim 6 , wherein said spacer comprises a plurality of cutouts for receiving said connecting pins.

8. The decoupled resection guide claim 5 , further comprising differently sized spacers positionable between said second body portion and said at least one paddle.

9. The decoupled resection guide claim 5 , wherein said at least one guide aperture comprises an elongated slot configured for a talar resection of the patient's talus.

10. A surgical method comprising:

supporting the decoupled resection guide of claim 5 on a plurality of alignment pins attached to the first anatomical structure of the patient; and

guiding the cutting tool through at least one guide aperture in the decoupled resection guide and into at least a portion of the second anatomical structure of the patient.

11. The surgical method of claim 10 , wherein the second anatomical structure of the patient comprises a talus.

12. A decoupled resection guide comprising:

a first body portion having a first side and an opposite second side, said first body portion having a plurality of alignment pin through-holes extending from said first side to said second side of said first body;

a second body portion having a first side and an opposite second side, said second body portion having a plurality of fixation pin through-holes extending from said first side to said second side of said second body portion, said second body portion having at least one guide aperture;

a plurality of connecting pins for movably connecting said first body portion relative to said second body portion;

said plurality of alignment pin through-holes of said first body portion being supportable on a plurality of alignment pins attached to a first anatomical structure of a patient;

said first body portion and said second body portion are operable to separate joint surfaces between the first anatomical structure of the patient and a second anatomical structure of the patient;

said fixation pin through-holes of said second body portion being operable for inserting a plurality of pins therethrough and into the second anatomical structure of the patient;

said at least one guide aperture is operable for guiding a cutting tool for use in resecting a portion of the second anatomical structure of the patient;

at least one paddle movably supported on said connecting pins, said at least one paddle extending from said second sides of said first body portion and said second body portion; and

a spacer positionable between said second body portion and said at least one paddle.

13. The decoupled resection guide claim 12 , wherein said spacer comprises a plurality of cutouts for receiving said connecting pins.

14. The decoupled resection guide claim 12 , further comprising differently sized spacers positionable between said second body portion and said at least one paddle.

15. The decoupled resection guide claim 12 , wherein said at least one guide aperture comprises an elongated slot configured for a talar resection of the patient's talus.

16. A surgical method comprising:

supporting the decoupled resection guide of claim 12 on a plurality of alignment pins attached to the first anatomical structure of the patient; and

guiding the cutting tool through at least one guide aperture in the decoupled resection guide and into at least a portion of the second anatomical structure of the patient.

17. The surgical method of claim 16 , wherein the second anatomical structure of the patient comprises a talus.

Assignments (7)
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 (REVOLVING)) Recorded Jan 11, 2023
From: PARAGON 28, INC.; PARAGON ADVANCED TECHNOLOGIES, INC.
To: MIDCAP FUNDING IV TRUST
Reel/Frame 062354/0016 →
SECURITY AGREEMENT SUPPLEMENT (TERM) Recorded Jan 11, 2023
From: PARAGON 28, INC.; PARAGON ADVANCED TECHNOLOGIES, INC.
To: MIDCAP FINANCIAL TRUST
Reel/Frame 062354/0006 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 11, 2021
From: LEE, DANIEL J.; DOGUÉ, JOSEPH; DACOSTA, ALBERT; BARMES, FRANCIS D.; CHRISTENSEN, JEFFREY
To: PARAGON 28, INC.
Reel/Frame 057148/0578 →
Continuity (4)
Continuation PCTUS2019064948 · Dec 6, 2019
Provisional Application 62898615 · Sep 11, 2019
Provisional Application 62779436 · Dec 13, 2018
Related Publication 20210353313A1 · Nov 18, 2021